Colorado

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State of Colorado
Flag of Colorado State seal of Colorado
Flag Seal
Nickname(s): The Centennial State
Motto(s): Nil sine numine
(English: Nothing without providence)
State song(s): ""Where the Columbines Grow" and "Rocky Mountain High"[1]"
Demonym Coloradan/Coloradoan
Capital Denver
Largest city Denver
Largest metro Denver-Aurora CSA
Area Ranked 8th
 • Total 104,094 sq mi
(269,837 km2)
 • Width 380 miles (612 km)
 • Length 280 miles (451 km)
 • % water 0.36%
 • Latitude 37°N to 41°N
 • Longitude 102°03'W to 109°03'W
Population Ranked 22nd
 • Total 5,456,574 (2015 est)[2]
 • Density 52.0/sq mi  (19.9/km2)
Ranked 37th
 • Median household income $57,685[3] (11th)
Elevation
 • Highest point Mount Elbert[4][5][6][7] in Lake County
14,440 ft (4401.2 m)
 • Mean 6,800 ft  (2070 m)
 • Lowest point Arikaree River[5][6] at the Kansas border
3,317 ft (1011 m)
Before statehood Colorado Territory
Admission to Union August 1, 1876 (38th)
Governor John Hickenlooper (D)
Lieutenant Governor Joseph A. García (D)
Legislature General Assembly
 • Upper house Senate
 • Lower house House of Representatives
U.S. Senators Michael Bennet (D)
Cory Gardner (R)
U.S. House delegation 4 Republicans and 3 Democrats (list)
Time zone Mountain: UTC-07/UTC-06
ISO 3166 US-CO
Abbreviations CO, Colo.
Website www.colorado.gov
Colorado state symbols
Flag of Colorado.svg
Seal of Colorado.svg
Living insignia
Amphibian Western tiger salamander
Ambystoma mavortium
Bird Lark bunting
Calamospiza melanocoryus
Cactus Claret cup cactus
Echinocereus triglochidiatus
Fish Greenback cutthroat trout
Oncorhynchus clarki somias
Flower Rocky Mountain columbine
Aquilegia caerulea
Grass Blue grama grass
Bouteloua gracilis
Insect Colorado hairstreak butterfly
Hypaurotis cysaluswas
Mammal Rocky Mountain bighorn sheep
Ovis canadensis
Pet Colorado shelter pets
Canis lupus familiaris
and Felis catus
Reptile Western painted turtle
Chrysemys picta bellii
Tree Colorado blue spruce
Picea pungens
Inanimate insignia
Folk dance Square dance
Chorea quadra
Fossil Stegosaurus
Stegosaurus armatus
Gemstone Aquamarine
Mineral Rhodochrosite
Motto Nil sine numine
(Latin: Nothing without providence)
Nickname The Centennial State
Rock Yule Marble
Ship USS Colorado (SSN-788)
Slogan Colorful Colorado
Soil Seitz
Song "Where the Columbines Grow" (1915) and
"Rocky Mountain High" (secondary song added 2007)
Sport Pack burro racing
Tartan Colorado State Tartan
State route marker
Colorado state route marker
State quarter
Colorado quarter dollar coin
Released in 2006
Lists of United States state symbols

Colorado (Listeni/kɒləˈræd/,[8] or /kɒləˈrɑːd/[9]) (Spanish for "ruddy") is a U.S. state encompassing most of the Southern Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains. Colorado is part of the Western United States, the Southwestern United States, and the Mountain States. Colorado is the 8th most extensive and the 22nd most populous of the 50 United States. The United States Census Bureau estimates that the population of Colorado was 5,456,574 on July 1, 2015, an increase of 8.50% since the 2010 United States Census.[2]

The state was named for the Colorado River, which Spanish travelers named the Río Colorado for the ruddy (Spanish: colorado) silt the river carried from the mountains. The Territory of Colorado was organized on February 28, 1861, and on August 1, 1876, U.S. President Ulysses S. Grant signed Proclamation 230 admitting Colorado to the Union as the 38th state. Colorado is nicknamed the "Centennial State" because it became a state 28 days after the centennial of the United States Declaration of Independence.

Colorado is bordered by Wyoming to the north, Nebraska to the northeast, Kansas to the east, Oklahoma to the southeast, New Mexico to the south, Utah to the west, and Arizona to the southwest, at the Four Corners. Colorado is noted for its vivid landscape of mountains, forests, high plains, mesas, canyons, plateaus, rivers, and desert lands.

Denver is the capital and the most populous city of Colorado. Residents of the state are properly known as "Coloradoans", although the term "Coloradan" is used in modern times.[10][11]

Geography

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Colorado is notable for its diverse geography, ranging from alpine mountains, arid plains and deserts with huge sand dunes, deep canyons, sandstone and granite rock formations, rivers, lakes, and lush forests. The borders of Colorado were originally defined to be lines of latitude and longitude, making its shape a latitude-longitude* quadrangle which stretches from 37°N to 41°N latitude and from 102°03'W to 109°03'W longitude (25°W to 32°W from the Washington Meridian).[12] Colorado, Wyoming and Utah are the only states which have boundaries defined solely by lines of latitude and longitude

File:Tenmile.JPG
Mountains and lakes near Breckenridge, Colorado

Mountains

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The summit of Mount Elbert at 14,440 feet (4,401.2 m) elevation in Lake County is the highest point in Colorado and the Rocky Mountains of North America.[4] Colorado is the only U.S. state that lies entirely above 1000 meters elevation. The point where the Arikaree River flows out of Yuma County, Colorado, and into Cheyenne County, Kansas, is the lowest point in Colorado at 3,317 feet (1,011 m) elevation. This point, which holds the distinction of being the highest low elevation point of any state,[5][13] is higher than the high elevation points of 18 states and the District of Columbia.

File:Picketwire Canyon.jpg
A view of the arid high plains in Southeastern Colorado
File:Calhanpm.JPG
The Calhan Paint Mines on the Colorado Eastern Plains

Plains

A little less than one half of the area of Colorado is flat and rolling land. East of the Rocky Mountains are the Colorado Eastern Plains of the High Plains, the section of the Great Plains within Nebraska at elevations ranging from roughly 3,350 to 7,500 feet (1,020 to 2,290 m).[14] The Colorado plains are usually thought of as prairies, but actually they have many patches of deciduous forests, buttes, and canyons, much like the high plains in New Mexico as well. Eastern Colorado is presently mainly covered in farmland, along with small farming villages and towns. Precipitation is fair, averaging from 15 to 25 inches (380 to 640 mm) annually.[15] Corn, wheat, hay, soybeans, and oats are all typical crops, and most of the villages and towns in this region boast both a water tower and a grain elevator. As well as the farming of crops, Eastern Colorado has a good deal of livestock raising, such as at cattle ranches and hog farms and irrigation water is available from the South Platte, the Arkansas River, and a few other streams, and also from subterranean sources, including artesian wells. However, heavy use of ground water from wells for irrigation has caused underground water reserves to decline.

File:Condiv.JPG
Front Range Peaks west of Denver

Front range

Most of Colorado's population resides along the eastern edge of the Rocky Mountains in the Front Range Urban Corridor between Cheyenne, Wyoming, and Pueblo, Colorado. This region is partially protected from prevailing storms that blow in from the Pacific Ocean region by the high Rockies in the middle of Colorado. The only other significant population centers are the cities of Grand Junction, Durango, and Montrose, all in western Colorado.

Continental Divide

The Continental Divide of the Americas extends along the crest of the Rocky Mountains. The area of Colorado to the west of the Continental Divide is called the Western Slope of Colorado. Drainage water west of the Continental Divide flows to the southwest via the Colorado River and the Green River into the Gulf of California.

Within the interior of the Rocky Mountains are several large parks which are high broad basins. In the north, on the east side of the Continental Divide is the North Park of Colorado. The North Park is drained by the North Platte River, which flows north into Wyoming and Nebraska. Just to the south of North Park, but on the western side of the Continental Divide, is the Middle Park of Colorado, which is drained by the Colorado River. The South Park of Colorado is the region of the headwaters of the South Platte River.

Southern region

File:Mt Herard sand.JPG
The tallest dunes in North America at Great Sand Dunes National Park in southern Colorado

In southmost Colorado is the large San Luis Valley, where the headwaters of the Rio Grande are located. The valley sits between the Sangre De Cristo Mountains and San Juan Mountains, and consists of large desert lands that eventually run into the mountains. The Rio Grande drains due south into New Mexico, Mexico, and Texas. Across the Sangre de Cristo Range to the east of the San Luis Valley lies the Wet Mountain Valley. These basins, particularly the San Luis Valley, lie along the Rio Grande Rift, a major geological formation of the Rocky Mountains, and its branches.

File:ChicoClosedBasin.jpg
The high desert lands that make up the San Luis Valley in Southern Colorado

Peaks

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To the west of the Great Plains of Colorado rises the eastern slope of the Rocky Mountains. Notable peaks of the Rocky Mountains include Longs Peak, Mount Evans, Pikes Peak, and the Spanish Peaks near Walsenburg, in southern Colorado. This area drains to the east and the southeast, ultimately either via the Mississippi River or the Rio Grande into the Gulf of Mexico.

The Rocky Mountains within Colorado contain about 53 peaks that are 14,000 feet (4,267 m) or higher in elevation above sea level, known as fourteeners.[16] These mountains are largely covered with trees such as conifers and aspens up to the tree line, at an elevation of about 12,140 feet (3,700 m) in southern Colorado to about 10,500 feet (3,200 m) in northern Colorado. Above this only alpine vegetation grows. Only small parts of the Colorado Rockies are snow-covered year round.

Much of the alpine snow melts by mid-August with the exception of a few snowcapped peaks and a few small glaciers. The Colorado Mineral Belt, stretching from the San Juan Mountains in the southwest to Boulder and Central City on the front range, contains most of the historic gold- and silver-mining districts of Colorado. Mount Elbert is the highest summit of the Rocky Mountains. The 30 highest major summits of the Rocky Mountains of North America all lie within the state.

File:East rim arch.jpg
Rim Arch in the Black Ridge Canyons Wilderness in western Colorado
File:Redcanyon.JPG
Sandstone cliffs along the Colorado River north of Wolcott

Colorado Western Slope

File:Grand Valley, Colorado.jpg
The Grand Valley in Western Colorado, a large valley made up of high desert terrain. The city of Grand Junction is located in the heart of the valley

The Western Slope of Colorado is drained by the Colorado River and its tributaries (primarily the Green River and the San Juan River) or by evaporation in its arid areas. The Colorado River flows through Glenwood Canyon and then through an arid valley made up of desert from Rifle to Parachute, through the desert canyon of De Beque Canyon, and into the arid desert of Grand Valley, where the city of Grand Junction is located. Also prominent in or near the southern portion of the Western Slope are the Grand Mesa, which lies to the southeast of Grand Junction; the high San Juan Mountains, a rugged mountain range; and to the west of the San Juan Mountains, the Colorado Plateau, a high arid region that borders Southern Utah.

The city of Grand Junction, Colorado is the largest city on the Western Slope. Grand Junction and Durango are the only major centers of television broadcasting west of the Continental Divide in Colorado, though most mountain resort communities publish daily newspapers. Higher education in and near the Western Slope can be found at Colorado Mesa University in Grand Junction, Western State College of Colorado in Gunnison, Fort Lewis College in Durango, and Colorado Mountain College in Glenwood Springs and Steamboat Springs.

Grand Junction is located along Interstate 70, the only major highway in Western Colorado. Grand Junction is also along the major railroad of the Western Slope, the Union Pacific. This railroad also provides the tracks for Amtrak's California Zephyr passenger train, which crosses the Rocky Mountains between Denver and Grand Junction via a route on which there are no continuous highways.

File:Colorado National Monument (4939640266).jpg
The Colorado National Monument near Grand Junction. The monument is made up of high desert canyons and sandstone rock formations

The Western Slope lies in close proximity to multiple notable destinations in the Colorado Rocky Mountains, including Glenwood Springs, with its resort hot springs, and the ski resorts of Aspen, Breckenridge, Vail, Crested Butte, Steamboat Springs, and Telluride.

The northwestern corner of Colorado is a sparsely populated region, and it contains part of the noted Dinosaur National Monument, which is not only a paleontological area, but is also a scenic area of rocky hills, canyons, arid desert, and streambeds. Here, the Green River briefly crosses over into Colorado.

From west to east, the land of Colorado consists of desert lands, desert plateaus, alpine mountains, National Forests, relatively flat grasslands, scattered forests, buttes, and canyons in the western edge of the Great Plains. The famous Pikes Peak is located just west of Colorado Springs. Its isolated peak is visible from nearly the Kansas border on clear days, and also far to the north and the south.[17]

Desert lands in Colorado are located in and around areas such as the Pueblo, Canon City, Florence, Great Sand Dunes National Park and Preserve, San Luis Valley, Cortez, Canyon of the Ancients National Monument, Hovenweep National Monument, Ute Mountain, Delta, Grand Junction, Colorado National Monument, and other areas surrounding the Uncompahgre Plateau and Uncompahgre National Forest.

Colorado is one of four states in the United States that share a common geographic point the Four Corners together with Arizona, New Mexico, and Utah. At this intersection, it is possible to stand in four states at once.

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Climate

The climate of Colorado is more complex than states outside of the Mountain States region. Unlike most other states, southern Colorado is not always warmer than northern Colorado. Most of Colorado is made up of mountains, foothills, high plains, and desert lands. Mountains and surrounding valleys greatly affect local climate.

As a general rule, with an increase in elevation comes a decrease in temperature and an increase in precipitation. Northeast, east, and southeast Colorado are mostly the high plains, while Northern Colorado is a mix of high plains, foothills, and mountains. Northwest and west Colorado are predominantly mountainous, with some desert lands mixed in. Southwest and southern Colorado are a complex mixture of desert and mountain areas.

Eastern Plains

The climate of the Eastern Plains is semiarid (Köppen climate classification: BSk) with low humidity and moderate precipitation, usually from 15 to 25 in (380 to 640 mm) annually. The area is known for its abundant sunshine and cool, clear nights, which give this area a great average diurnal temperature range. The difference between the highs of the days and the lows of the nights can be considerable as warmth dissipates to the space during clear nights, the heat radiation not being trapped by clouds.

In summer, this area can have many days above 95 °F (35 °C) and often 100 °F (38 °C).[18] On the plains, the winter lows usually range from 25 to −10 °F (−4 to −23 °C). About 75% of the precipitation falls within the growing season, from April to September, but this area is very prone to droughts. Most of the precipitation comes from thunderstorms, which can be severe, and from major snowstorms that occur in the winter and early spring. Otherwise, winters tend to be mostly dry and cold.[19]

In much of the region, March is the snowiest month. April and May are normally the rainiest months, while April is the wettest month overall. The Front Range cities closer to the mountains tend to be warmer in the winter due to Chinook winds which warm the area, sometimes bringing temperatures of 70 °F (21 °C) or higher in the winter.[19] The average July temperature is 55 °F (13 °C) in the morning and 90 °F (32 °C) in the afternoon. The average January temperature is 18 °F (−8 °C) in the morning and 48 °F (9 °C) in the afternoon, although variation between consecutive days can be 40 °F (22 °C).

West of the plains and foothills

West of the plains and foothills, the weather of Colorado is much less uniform. Even places a few miles apart can experience entirely different weather depending on the topography of the area. Most valleys have a semi-arid climate, which becomes an alpine climate at higher elevations. Humid microclimates also exist in some areas. Generally, the wettest season in western Colorado is winter while June is the driest month.

The mountains have mild summers with many days of high temperatures between 60 and 85 °F (16 and 29 °C), although thunderstorms can cause sudden but brief drops in temperature. The winters bring abundant, powdery snowfall to the mountains with plenty of sunshine between major storms. The western slope has high summer temperatures similar to those found on the plains, while the winters tend to be slightly cooler due to the lack of warming winds common to the plains and Front Range. Other areas in the west have their own unique climate.

Extreme weather

File:October Snow in Colorado.jpg
Snow highlights the rugged mountains, as well as the urban and agricultural landscapes of the Colorado plains.

Extreme weather changes are common in Colorado, although the majority of extreme weather occurs in the least populated areas of the state. Thunderstorms are common east of the Continental Divide in the spring and summer, yet are usually brief. Hail is a common sight in the mountains east of the divide and in the northwest part of the state. The Eastern Plains have had some of the biggest hail storms in North America.[15]

The Eastern Plains are part of the extreme western portion of Tornado Alley; some damaging tornadoes in the Eastern Plains include the 1990 Limon F3 tornado and the 2008 Windsor EF3 tornado, which devastated the small town.[20] The plains are also susceptible to occasional floods, which are caused both by thunderstorms and by the rapid melting of snow in the mountains during warm weather. Denver's record in 1901 for the number of consecutive days above 90 °F (32 °C) was broken during the summer of 2008. The new record of 24 consecutive days surpassed the previous record by almost a week.[21]

Much of Colorado is a very dry state averaging only 17 in (430 mm) of precipitation per year statewide and rarely experiences a time when some portion of the state is not in some degree of drought.[22] The lack of precipitation contributes to the severity of wildfires in the state, such as the Hayman Fire, one of the largest wildfires in American history, and the Fourmile Canyon Fire of 2010, which until the Waldo Canyon Fire of June 2012, and the Black Forest Fire of June 2013, was the most destructive wildfire in Colorado's recorded history.

However, some of the mountainous regions of Colorado receive a huge amount of moisture from winter snowfalls. The spring melts of these snows often cause great waterflows in the Yampa River, the Colorado River, the Rio Grande, the Arkansas River, Cherry Creek, the North Platte River, and the South Platte River.

File:Overlook of Yampa River.jpg
The Yampa River, from a high overlook

Water flowing out of the Colorado Rocky Mountains is a very significant source of water for the farms, towns, and cities of the southwest states of New Mexico, Arizona, Utah, and Nevada, as well as the Midwest, such as Nebraska and Kansas, and the southern states of Oklahoma and Texas. A significant amount of water is also diverted for use in California; occasionally (formerly naturally and consistently), the flow of water reaches northern Mexico.

Records

The highest ambient air temperature ever recorded in Colorado was 118 °F (48 °C) on July 11, 1888, at Bennett. The lowest air temperature was −61 °F (−52 °C) on February 1, 1985, at Maybell.[23][24]

Monthly normal high and low temperatures for various Colorado cities[25] (°F) (°C)
City Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Alamosa 34/−2
2/−19
40/6
4/−14
50/17
10/−8
59/24
15/−4
69/33
21/1
79/41
26/5
82/47
28/8
80/46
27/8
73/40
23/4
62/25
17/−4
47/12
8/−11
35/1
2/−17
Colorado Springs 43/18
6/−8
45/20
7/−7
52/26
11/−3
60/33
16/1
69/43
21/6
79/51
26/11
85/57
29/14
82/56
28/13
75/47
24/8
63/36
17/2
51/25
11/−4
42/18
6/−8
Denver 49/20
9/−7
49/21
9/−6
56/29
13/−2
64/35
18/2
73/46
23/8
84/54
29/12
92/61
33/16
89/60
32/16
81/50
27/10
68/37
20/3
55/26
13/−3
47/18
8/−8
Grand Junction 38/17
3/−8
45/24
7/−4
57/31
14/-1
65/38
18/3
76/47
24/8
88/56
31/13
93/63
34/17
90/61
32/16
80/52
27/11
66/40
19/4
51/28
11/−2
39/19
4/−7
Pueblo 47/14
8/−10
51/17
11/−8
59/26
15/−3
67/34
19/1
77/44
25/7
87/53
31/12
93/59
34/15
90/58
32/14
82/48
28/9
69/34
21/1
56/23
13/−5
46/14
8/−10

Earthquakes

Despite its mountainous terrain, Colorado is relatively quiescent seismically. The U.S. National Earthquake Information Center is located in Golden.

On August 22, 2011, a 5.3 magnitude earthquake occurred nine miles west-southwest of the city of Trinidad.[26] There were no casualties and only a small amount of damage was reported. It was the second largest earthquake in Colorado. A magnitude 5.7 earthquake was recorded in 1973.[27]

History

File:Great Kiva at Chimney Rock Colorado.JPG
Great Kiva at Chimney Rock in the San Juan Mountains of Southwestern Colorado. It is said to have been built by the Ancient Pueblo peoples.

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The region that is today the state of Colorado has been inhabited by Native Americans for more than 13,000 years. The Lindenmeier Site in Larimer County contains artifacts dating from approximately 11200 BC to 3000 BC. The eastern edge of the Rocky Mountains was a major migration route that was important to the spread of early peoples throughout the Americas. The Ancient Pueblo peoples lived in the valleys and mesas of the Colorado Plateau.[28] The Ute Nation inhabited the mountain valleys of the Southern Rocky Mountains and the Western Rocky Mountains, even as far east as the Front Range of present day. The Apache and the Comanche also inhabited Eastern and Southeastern parts of the state. At times, the Arapaho Nation and the Cheyenne Nation moved west to hunt across the High Plains.

The U.S. acquired a territorial claim to the eastern Rocky Mountains with the Louisiana Purchase from France in 1803. This U.S. claim conflicted with the claim by Spain to the upper Arkansas River Basin as the exclusive trading zone of its colony of Santa Fé de Nuevo Méjico. In 1806, Zebulon Pike led a U.S. Army reconnaissance expedition into the disputed region. Colonel Pike and his men were arrested by Spanish cavalrymen in the San Luis Valley the following February, taken to Chihuahua, and expelled from Mexico the following July.

The U.S. relinquished its claim to all land south and west of the Arkansas River and south of 42nd parallel north and west of the 100th meridian west as part of its purchase of Florida from Spain with the Adams-Onís Treaty of 1819. The treaty took effect February 22, 1821. Having settled its border with Spain, the U.S. admitted the southeastern portion of the Territory of Missouri to the Union as the state of Missouri on August 10, 1821. The remainder of Missouri Territory, including what would become northeastern Colorado, became unorganized territory, and remained so for 33 years over the question of slavery. After 11 years of war, Spain finally recognized the independence of Mexico with the Treaty of Córdoba signed on August 24, 1821. Mexico eventually ratified the Adams-Onís Treaty in 1831. The Texian Revolt of 1835–1836 fomented a dispute between the U.S. and Mexico which eventually erupted into the Mexican-American War in 1846. Mexico surrendered its northern territory to the U.S. with the Treaty of Guadalupe Hidalgo at the conclusion of the war in 1848.

Map of the Mexican cession, with the white representing the territory the United States received from Mexico. Well over half of Colorado was received during this treaty.

Most American settlers traveling overland west to the Oregon Country, namely the new goldfields of California, or the new Mormon settlements of the State of Deseret in the Salt Lake Valley, avoided the rugged Southern Rocky Mountains, and instead followed the North Platte River and Sweetwater River to South Pass (Wyoming), the lowest crossing of the Continental Divide between the Southern Rocky Mountains and the Central Rocky Mountains. In 1849, the Mormons of the Salt Lake Valley organized the extralegal State of Deseret, claiming the entire Great Basin and all lands drained by the rivers Green, Grand, and Colorado. The federal government of the U.S. flatly refused to recognize the new Mormon government, because it was theocratic and sanctioned plural marriage. Instead, the Compromise of 1850 divided the Mexican Cession and the northwestern claims of Texas into a new state and two new territories, the state of California, the Territory of New Mexico, and the Territory of Utah. On April 9, 1851, Mexican American settlers from the area of Taos settled the village of San Luis, then in the New Mexico Territory, later to become Colorado's first permanent Euro-American settlement.

The Anasazi Heritage Center in Dolores

In 1854, Senator Stephen A. Douglas persuaded the U.S. Congress to divide the unorganized territory east of the Continental Divide into two new organized territories, the Territory of Kansas and the Territory of Nebraska, and an unorganized southern region known as the Indian territory. Each new territory was to decide the fate of slavery within its boundaries, but this compromise merely served to fuel animosity between free soil and pro-slavery factions.

The gold seekers organized the Provisional Government of the Territory of Jefferson on August 24, 1859, but this new territory failed to secure approval from the Congress of the United States embroiled in the debate over slavery. The election of Abraham Lincoln for the President of the United States on November 6, 1860, led to the secession of nine southern slave states and the threat of civil war among the states. Seeking to augment the political power of the Union states, the Republican Party dominated Congress quickly admitted the eastern portion of the Territory of Kansas into the Union as the free State of Kansas on January 29, 1861, leaving the western portion of the Kansas Territory, and its gold-mining areas, as unorganized territory.

Territory act

File:1860 colorado territory map.png
The territories of New Mexico, Utah, Kansas, and Nebraska before the creation of the Territory of Colorado

Thirty days later on February 28, 1861, outgoing U.S. President James Buchanan signed an Act of Congress organizing the free Territory of Colorado.[29] The original boundaries of Colorado remain unchanged today. The name Colorado was chosen because it was commonly believed that the Colorado River originated in the territory.[30] In 1776, Spanish priest Silvestre Vélez de Escalante recorded that Native Americans in the area knew the river as el Rio Colorado for the red-brown silt that the river carried from the mountains.[31] In 1859, a U.S. Army topographic expedition led by Captain John Macomb located the confluence of the Green River with the Grand River in what is now Canyonlands National Park in Utah.[32] The Macomb party designated the confluence as the source of the Colorado River.

On April 12, 1861, South Carolina artillery opened fire on Fort Sumter to start the American Civil War. While many gold seekers held sympathies for the Confederacy, the vast majority remained fiercely loyal to the Union cause.

In 1862, a force of Texas cavalry invaded the Territory of New Mexico and captured Santa Fe on March 10. The object of this Western Campaign was to seize or disrupt the gold fields of Colorado and California and to seize ports on the Pacific Ocean for the Confederacy. A hastily organized force of Colorado volunteers force-marched from Denver City, Colorado Territory, to Glorieta Pass, New Mexico Territory, in an attempt to block the Texans. On March 28, the Coloradans and local New Mexico volunteers stopped the Texans at the Battle of Glorieta Pass, destroyed their cannon and supply wagons, and ran off 500 of their horses and mules. The Texans were forced to retreat to Santa Fe. Having lost the supplies for their campaign and finding little support in New Mexico, the Texans abandoned Santa Fe and returned to San Antonio in defeat. The Confederacy made no further attempts to seize the Southwestern United States.

In 1864, Territorial Governor John Evans appointed the Reverend John Chivington as Colonel of the Colorado Volunteers with orders to protect white settlers from Cheyenne and Arapaho warriors who were accused of stealing cattle. Colonel Chivington ordered his men to attack a band of Cheyenne and Arapaho encamped along Sand Creek. Chivington reported that his troops killed more than 500 warriors. The militia returned to Denver City in triumph, but several officers reported that the so-called battle was a blatant massacre of Indians at peace, that most of the dead were women and children, and that bodies of the dead had been hideously mutilated and desecrated. Three U.S. Army inquiries condemned the action, and incoming President Andrew Johnson asked Governor Evans for his resignation, but none of the perpetrators was ever punished. This event is now known as the Sand Creek massacre.

In the midst and aftermath of Civil War, many discouraged prospectors returned to their homes, but a few stayed and developed mines, mills, farms, ranches, roads, and towns in Colorado Territory. On September 14, 1864, James Huff discovered silver near Argentine Pass, the first of many silver strikes. In 1867, the Union Pacific Railroad laid its tracks west to Weir, now Julesburg, in the northeast corner of the Territory. The Union Pacific linked up with the Central Pacific Railroad at Promontory Summit, Utah, on May 10, 1869, to form the First Transcontinental Railroad. The Denver Pacific Railway reached Denver in June the following year, and the Kansas Pacific arrived two months later to forge the second line across the continent. In 1872, rich veins of silver were discovered in the San Juan Mountains on the Ute Indian reservation in southwestern Colorado. The Ute people were removed from the San Juans the following year.

Statehood

The United States Congress passed an enabling act on March 3, 1875, specifying the requirements for the Territory of Colorado to become a state.[12] On August 1, 1876 (28 days after the Centennial of the United States), U.S. President Ulysses S. Grant signed a proclamation admitting Colorado to the Union as the 38th state and earning it the moniker "Centennial State".[33]

The discovery of a major silver lode near Leadville in 1878 triggered the Colorado Silver Boom. The Sherman Silver Purchase Act of 1890 invigorated silver mining, and Colorado's last, but greatest, gold strike at Cripple Creek a few months later lured a new generation of gold seekers. Colorado women were granted the right to vote beginning on November 7, 1893, making Colorado the second state to grant universal suffrage and the first one by a popular vote (of Colorado men). The repeal of the Sherman Silver Purchase Act in 1893 led to a staggering collapse of the mining and agricultural economy of Colorado, but the state slowly and steadily recovered.

Colorado became the first western state to host a major political convention when the Democratic Party met in Denver in 1908. By the U.S. Census in 1930, the population of Colorado first exceeded one million residents. Colorado suffered greatly through the Great Depression and the Dust Bowl of the 1930s, but a major wave of immigration following World War II boosted Colorado's fortune. Tourism became a mainstay of the state economy, and high technology became an important economic engine. The United States Census Bureau estimated that the population of Colorado exceeded five million in 2009.

Three warships of the U.S. Navy have been named the USS Colorado. The first USS Colorado was named for the Colorado River. The later two ships were named in honor of the state, including the battleship USS Colorado which served in World War II in the Pacific beginning in 1941. At the time of the Attack on Pearl Harbor, this USS Colorado was located at the naval base in San Diego, Calif. and hence went unscathed.

Demographics

File:Colorado population map.png
Colorado Population Density Map.
Historical population
Census Pop.
1860 34,277
1870 39,864 16.3%
1880 194,327 387.5%
1890 413,249 112.7%
1900 539,700 30.6%
1910 799,024 48.0%
1920 939,629 17.6%
1930 1,035,791 10.2%
1940 1,123,296 8.4%
1950 1,325,089 18.0%
1960 1,753,947 32.4%
1970 2,207,259 25.8%
1980 2,889,964 30.9%
1990 3,294,394 14.0%
2000 4,301,262 30.6%
2010 5,029,196 16.9%
Est. 2015 5,456,574 8.5%
Sources: 1910–2010[34]
2015 estimate[2]

The United States Census Bureau estimates that the population of Colorado was 5,456,574 on July 1, 2015, a 8.5% increase since the 2010 United States Census.[2] Colorado's most populous city, and capital, is Denver. The Denver-Aurora-Boulder Combined Statistical Area with an estimated 2013 population of 3,277,309, has 60% of the state's residents.

The largest increases are expected in the Front Range Urban Corridor, especially in the Denver metropolitan area. The state's fastest-growing counties are Douglas and Weld.[35] The center of population of Colorado is located just north of the village of Critchell in Jefferson County.[36]

According to the 2010 United States Census, Colorado had a population of 5,029,196. Racial composition of the state's population was:

Colorado Racial Breakdown of Population
Racial composition 1970[37] 1990[37] 2000[38] 2010[39]
White (includes White Hispanics) 95.7% 88.2% 82.8% 81.3%
Black 3.0% 4.0% 3.8% 4.0%
Asian 0.5% 1.8% 2.2% 2.8%
Native 0.4% 0.8% 1.0% 1.1%
Native Hawaiian and
other Pacific Islander
0.1% 0.1%
Other race 0.4% 5.1% 7.2% 7.2%
Two or more races 2.8% 3.4%

People of Hispanic and Latino American (of any race made) heritage, made up 20.7% of the population.[40] According to the 2000 Census, the largest ancestry groups in Colorado are German (22%) including of Swiss and Austrian nationalities, Mexican (18%), Irish (12%), and English (12%). Persons reporting German ancestry are especially numerous in the Front Range, the Rockies (west-central counties) and Eastern parts/High Plains.

Colorado has a high proportion of Hispanic, mostly Mexican-American, citizens in Metropolitan Denver, Colorado Springs, as well as the smaller cities of Greeley and Pueblo, and elsewhere. Colorado is well known for its strong Latino culture and presence. Southern, Southwestern, and Southeastern Colorado has a large number of Hispanos, the descendants of the early Mexican settlers of colonial Spanish origin. In 1940, the Census Bureau reported Colorado's population as 8.2% Hispanic and 90.3% non-Hispanic white.[41] The Hispanic population of Colorado has continued to grow quickly over the past decades. By 2012, Hispanics made up 21% of Colorado's population, and Non-Hispanic Whites made up 69%.[3]

Colorado, like New Mexico, is very rich in Spanish idioms.[42]

Colorado also has some large African-American communities located in Denver, in the neighborhoods of Montbello, Five Points, Whittier, and many other East Denver areas. A relatively large population of African Americans are also found in Colorado Springs on the east and southeast side of the city. The state has sizable numbers of Asian-Americans of Mongolian, Chinese, Filipino, Korean, Southeast Asian and Japanese descent. The highest population of Asian Americans can be found on the south and southeast side of Denver, as well as some on Denver's southwest side. The Denver metropolitan area is considered more liberal and diverse than much of the state when it comes to political issues and environmental concerns.

There were a total of 70,331 births in Colorado in 2006. (Birth rate of 14.6 per thousand.) In 2007, non-Hispanic whites were involved in 59.1% of all the births.[43] Some 14.06% of those births involved a non-Hispanic white person and someone of a different race, most often with a couple including one Hispanic. A birth where at least one Hispanic person was involved counted for 43% of the births in Colorado.[44] As of the 2010 Census, Colorado has the seventh highest percentage of Hispanics (20.7%) in the U.S. behind New Mexico (46.3%), California (37.6%), Texas (37.6%), Arizona (29.6%), Nevada (26.5%), and Florida (22.5%). Per the 2000 census, the Hispanic population is estimated to be 918,899 or approximately 20% of the state total population. Colorado has the 5th largest population of Mexican-Americans behind California, Texas, Arizona, and Illinois. In percentages, Colorado has the 6th highest percentage of Mexican-Americans behind New Mexico, California, Texas, Arizona, and Nevada.[45]

In 2011, 46% of Colorado's population younger than the age of one were minorities, meaning that they had at least one parent who was not non-Hispanic white.[46]


Religion

Major religious affiliations of the people of Colorado are 64% Christian, of whom there are 44% Protestants, 19% Roman Catholics, 3% Latter Day Saint/Mormon,[47] 2% Jews, 1% Muslim, 1% Buddhist and 0.5% Hindu. The religiously unaffiliated make up 25% of the population.[48]

The largest denominations by number of adherents in 2010 were the Catholic Church with 811,630; non-denominational Evangelical Protestants with 229,981; and The Church of Jesus Christ of Latter-day Saints with 142,473.[49]

Religion
Protestant 44%
Unaffiliated 25%
Roman Catholic 19%
Mormon 3%
Jewish 2%
Muslim 1%
Buddhist 1%
Hindu 0.5%

Health

According to several studies, Coloradans have the lowest rates of obesity of any state in the US.[50] As of 2007, 18% of the population was considered medically obese, and while the lowest in the nation, the percentage had increased from 17% from 2004. Former Colorado Governor Bill Ritter commented: "As an avid fisherman and bike rider, I know first-hand that Colorado provides a great environment for active, healthy lifestyles," although he highlighted the need for continued education and support to slow the growth of obesity in the state.[51]

Culture

File:Denver Colorado Art.jpg
Street art in Denver

Fine arts

Film

A number of film productions have shot on location in Colorado, especially prominent Westerns like True Grit, The Searchers and Butch Cassidy and the Sundance Kid. A number of historic military forts, railways with trains still operating, mining ghost towns have been utilized and transformed for historical accuracy in well known films. There are also a number of scenic highways and mountain passes that helped to feature the open road in films such as Vanishing Point, Bingo and Starman. Some Colorado landmarks have been featured in films, such as The Stanley Hotel in Dumb and Dumber and the Sculptured House in Sleeper. The Colorado Office of Film and Television has noted that over 400 films have been shot in Colorado.[52]

There are also a number of established film festivals in Colorado, including Aspen Shortsfest, Boulder International Film Festival, Castle Rock Film Festival, Denver Film Festival, Festivus film festival, Mile High Horror Film Festival, Moondance International Film Festival, Mountainfilm in Telluride, Rocky Mountain Women's Film Festival, and Telluride Film Festival.

Cuisine

Colorado is known for its Southwest and Rocky Mountain cuisine. Mexican restaurants are prominent throughout the state.

Boulder, Colorado was named America's Foodiest Town 2010 by Bon Appétit.[53] Boulder, and Colorado in general, is home to a number of national food and beverage companies, top-tier restaurants and farmers' markets. Boulder, Colorado also has more Master Sommeliers per capita than any other city, including San Francisco and New York.[54]

The Food & Wine Classic is held annually each June in Aspen, Colorado. Aspen also has a reputation as the culinary capital of the Rocky Mountain region.[55]

Denver is known for steak, but now has a diverse culinary scene with many top-tier restaurants.[56]

Wine and beer

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Colorado wines include award-winning varietals that have attracted favorable notice from outside the state.[57] With wines made from traditional Vitis vinifera grapes along with wines made from cherries, peaches, plums and honey, Colorado wines have won top national and international awards for their quality.[58] Colorado's grape growing regions contain the highest elevation vineyards in the United States,[59] with most viticulture in the state practiced between 4,000 and 7,000 feet (1,219 and 2,134 m) above sea level. The mountain climate ensures warm summer days and cool nights. Colorado is home to two designated American Viticultural Areas of the Grand Valley AVA and the West Elks AVA,[60] where most of the vineyards in the state are located. However, an increasing number of wineries are located along the Front Range.[61]

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Colorado is home to many nationally praised microbreweries,[62] including New Belgium Brewing Company, Odell Brewing Company, Great Divide Brewing Company, and Oskar Blues Brewery. The area of northern Colorado near the city of Fort Collins is known as the "Napa Valley of Beer" due to its high density of craft breweries.[63]

Cannabis

Colorado is one of four states to legalize both the medicinal (2000) and recreational (2014) use of marijuana.

Amendment 64 states that the Colorado state legislature "shall enact legislation governing the cultivation, processing and sale of industrial hemp" by July 1, 2014.[64] On April 4, 2014 Senate Bill 14-184 addressing oversight of Colorado's industrial hemp program was first introduced, ultimately being signed into law by Governor John Hickenlooper on May 31, 2014.[65] This legislation makes Colorado the only source of domestically grown industrial hemp in the United States.

Medicinal use

On November 7, 2000, 54% of Colorado voters passed Amendment 20, which amends the Colorado State constitution to allow the medical use of cannabis.[66] Patients can possess no more than two ounces of "usable cannabis" and not more than six cannabis plants.

Currently Colorado has listed "eight medical conditions for which patients can use cannabis – cancer, glaucoma, HIV/AIDS, muscle spasms, seizures, severe pain, severe nausea and cachexia or dramatic weight loss and muscle atrophy."[67] Colorado Governor John Hickenlooper has allocated about half of the state's $13 million "Medical Marijuana Program Cash Fund"[68] to medical research in the 2014 budget.[69][70]

Recreational use

On November 6, 2012, voters amended the state constitution to protect "personal use" of marijuana for adults, establishing a framework to regulate cannabis in a manner similar to alcohol. The first recreational marijuana shops in Colorado, and by extension the United States, opened their doors on January 1, 2014.[71]

Economy

File:Denver CO DT WTC AMH 322.JPG
Denver World Trade Center.
The Denver financial district along 17th Street is known as the Wall Street of the West.

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CNBC's list of "Top States for Business for 2010" has recognized Colorado as the third best state in the nation, falling short to only Texas and Virginia.[72]

The Bureau of Economic Analysis estimates that the total state product in 2010 was $257.6 billion.[73] Per capita personal income in 2010 was $51 940, ranking Colorado 11th in the nation.[74] The state's economy broadened from its mid-19th century roots in mining when irrigated agriculture developed, and by the late 19th century, raising livestock had become important. Early industry was based on the extraction and processing of minerals and agricultural products. Current agricultural products are cattle, wheat, dairy products, corn, and hay.

The federal government is also a major economic force in the state with many important federal facilities including NORAD (North American Aerospace Defense Command), United States Air Force Academy, Schriever Air Force Base located approximately 10 miles (16 kilometers) east of Peterson Air Force Base, and Fort Carson, both located in Colorado Springs within El Paso County; NOAA, the National Renewable Energy Laboratory (NREL) in Golden, and the National Institute of Standards and Technology in Boulder; U.S. Geological Survey and other government agencies at the Denver Federal Center near Lakewood; the Denver Mint, Buckley Air Force Base, the Tenth Circuit Court of Appeals and the Byron G. Rogers Federal Building and United States Courthouse in Denver; and a federal Supermax Prison and other federal prisons near Cañon City. In addition to these and other federal agencies, Colorado has abundant National Forest land and four National Parks that contribute to federal ownership of 24,615,788 acres (99,617 km2) of land in Colorado, or 37% of the total area of the state.[75] In the second half of the 20th century, the industrial and service sectors have expanded greatly. The state's economy is diversified and is notable for its concentration of scientific research and high-technology industries. Other industries include food processing, transportation equipment, machinery, chemical products, the extraction of metals such as gold (see Gold mining in Colorado), silver, and molybdenum. Colorado now also has the largest annual production of beer of any state.[76] Denver is an important financial center.

A number of nationally known brand names have originated in Colorado factories and laboratories. From Denver came the forerunner of telecommunications giant Qwest in 1879, Samsonite luggage in 1910, Gates belts and hoses in 1911, and Russell Stover Candies in 1923. Kuner canned vegetables began in Brighton in 1864. From Golden came Coors beer in 1873, CoorsTek industrial ceramics in 1920, and Jolly Rancher candy in 1949. CF&I railroad rails, wire, nails and pipe debuted in Pueblo in 1892. Holly Sugar was first milled from beets in Holly in 1905, and later moved its headquarters to Colorado Springs. The present-day Swift packed meat of Greeley evolved from Monfort of Colorado, Inc., established in 1930. Estes model rockets were launched in Penrose in 1958. Fort Collins has been the home of Woodward Governor Company's motor controllers (governors) since 1870, and Waterpik dental water jets and showerheads since 1962. Celestial Seasonings herbal teas have been made in Boulder since 1969. Rocky Mountain Chocolate Factory made its first candy in Durango in 1981.

Colorado has a flat 4.63% income tax, regardless of income level. Unlike most states, which calculate taxes based on federal adjusted gross income, Colorado taxes are based on taxable income – income after federal exemptions and federal itemized (or standard) deductions.[77][78] Colorado's state sales tax is 2.9% on retail sales. When state revenues exceed state constitutional limits, according to Colorado's Taxpayer Bill of Rights legislation, full-year Colorado residents can claim a sales tax refund on their individual state income tax return. Many counties and cities charge their own rates in addition to the base state rate. There are also certain county and special district taxes that may apply.

Real estate and personal business property are taxable in Colorado. The state's senior property tax exemption was temporarily suspended by the Colorado Legislature in 2003. The tax break is scheduled to return for assessment year 2006, payable in 2007.

As of August 2014, the state's unemployment rate is 5.3%.[79]

Philanthropy

Major philanthropic organizations based in Colorado, include the Daniels Fund, the Anschutz Family Foundation, the Gates Family Foundation, the El Pomar Foundation and the Boettcher Foundation grant each year from approximately $7 billion[80] of assets.

Natural resources

Colorado has significant hydrocarbon resources. According to the Energy Information Administration, Colorado hosts seven of the Nation's 100 largest natural gas fields and two of its 100 largest oil fields. Conventional and unconventional natural gas output from several Colorado basins typically account for more than 5 percent of annual U.S. natural gas production. Colorado's oil shale deposits hold an estimated 1 trillion barrels (160 km3) of oil – nearly as much oil as the entire world's proven oil reserves; the economic viability of the oil shale, however, has not been demonstrated.[81] Substantial deposits of bituminous, subbituminous, and lignite coal are found in the state.

Uranium mining in Colorado, United States, goes back to 1872, when pitchblende ore was taken from gold mines near Central City, Colorado. The Colorado uranium industry has seen booms and busts, but continues to this day. Not counting byproduct uranium from phosphate, Colorado is considered to have the third largest uranium reserves of any US state, behind Wyoming and New Mexico.

Uranium price increases from 2001 to 2007 prompted a number of companies to revive uranium mining in Colorado. However, price drops and financing problems in late 2008 have forced some companies to cancel or scale back uranium-mining projects. There are no currently producing uranium mines in Colorado.

Colorado's high Rocky Mountain ridges and eastern plains offer wind power potential, and geologic activity in the mountain areas provides potential for geothermal power development. Much of the state is sunny and could produce solar power. Major rivers flowing from the Rocky Mountains offer hydroelectric power resources. Corn grown in the flat eastern part of the state offers potential resources for ethanol production.

Transportation

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A Colorado state welcome sign

Colorado's primary mode of transportation (in terms of passengers) is its highway system. Interstate 25 (I-25) is the primary north–south highway in the state, connecting Pueblo, Colorado Springs, Denver, and Fort Collins, and extending north to Wyoming and south to New Mexico. I-70 is the primary east–west corridor. It connects Grand Junction and the mountain communities with Denver, and enters Utah and Kansas. The state is home to a network of US and Colorado highways that provide access to all principal areas of the state. Smaller communities are only connected to this network via county roads.

File:DIA.jpg
The main terminal of Denver International Airport evokes the peaks of the Front Range.

Denver International Airport (DIA) is the fourth busiest domestic U.S. airport and thirteenth busiest world airport[82] DIA handles by far the largest volume of commercial air traffic in Colorado, and is the busiest U.S. hub airport between Chicago and the Pacific coast, making Denver the most important airport for connecting passenger traffic in the western United States. Denver International Airport is the primary hub for carrier Frontier Airlines, with routes throughout North America. It is also the fourth-largest hub of the world's largest airline, United Airlines. DIA is a focus city for Southwest Airlines, which since commencing service to Denver in January 2006, has added over 50 destinations, making Denver its fastest-growing market. Denver International Airport is the only airport in the United States to have implemented an ISO 14001-certified environmental management system covering the entire airport.[83]

Extensive public transportation bus services are offered both intra-city and inter-city—including the Denver metro area's extensive RTD services. The Regional Transportation District (RTD) operates the popular RTD Bus & Light Rail transit system in the Denver Metropolitan Area. As of January 2013 the RTD rail system had 170 light rail vehicles, serving 47 miles (76 km) of track.

Amtrak operates two rail passenger lines through Colorado, including the Glenwood Canyon route of the famed California Zephyr, one of America's legendary passenger trains. Colorado's contribution to world railroad history was forged principally by the Denver and Rio Grande Western Railroad which began in 1870 and wrote the book on mountain railroading. In 1988 the "Rio Grande" acquired, but was merged into, the Southern Pacific Railroad by their joint owner Philip Anschutz. On September 11, 1996, Anschutz sold the combined company to the Union Pacific Railroad, creating the largest railroad network in the United States. The Anschutz sale was partly in response to the earlier merger of Burlington Northern and Santa Fe which formed the large Burlington Northern and Santa Fe Railway (BNSF), Union Pacific's principal competitor in western U.S. railroading. Both Union Pacific and BNSF have extensive freight operations in Colorado.

Colorado's freight railroad network consists of 2,688 miles of Class I trackage. It is integral to the U.S. economy, being a critical artery for the movement of energy, agriculture, mining, and industrial commodities as well as general freight and manufactured products between the East and Midwest and the Pacific coast states.[84]

In August 2014, Colorado began to issue driver licenses to aliens not lawfully in the United States who lived in Colorado.[85] In September 2014, KCNC reported that 524 non-citizens were issued licenses issued to U.S. Citizens living in Colorado.[86]

Government and politics

The Five Executive Officers of the State of Colorado
Office Incumbent Party Term
Governor John Hickenlooper Democratic 2011–2019
Lieutenant Governor Joseph Garcia Democratic 2011–2019
Secretary of State Wayne W. Williams Republican 2015–2019
State Treasurer Walker Stapleton Republican 2011–2019
Attorney General Cynthia Coffman Republican 2015–2019

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State government

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Like the federal government and all other U.S. states, Colorado's state constitution provides for three branches of government: the legislative, the executive, and the judicial branches.

The Governor of Colorado heads the state's executive branch. The current governor is John Hickenlooper, a Democrat. Colorado's other statewide elected executive officers are the Lieutenant Governor of Colorado (elected on a ticket with the Governor), Secretary of State of Colorado, Colorado State Treasurer, and Attorney General of Colorado, all of whom serve four-year terms.

Gubernatorial election results
Year Republican Democratic
2014 45.95% 938,195 49.3% 1,006,433
2010 11.3% 199,034 51.0% 912,005
2006 40.16% 625,886 56.98% 888,096
2002 62.62% 884,584 33.65% 475,373
1998 49.06% 648,202 48.43% 639,905
1994 38.70% 432,042 55.47% 619,205
1990 35.43% 358,403 61.89% 626,032

The seven-member Colorado Supreme Court is the highest judicial court in the state. The state legislative body is the Colorado General Assembly, which is made up of two houses, the House of Representatives and the Senate. The House has 65 members and the Senate has 35. As of 2014, the Republican Party holds an 18 to 17 majority in the Senate and a 31 to 34 minority in the House.

Most Coloradans are native to other states (nearly 60% according to the 2000 census),[87] and this is illustrated by the fact that the state did not have a native-born governor from 1975 (when John David Vanderhoof left office) until 2007, when Bill Ritter took office; his election the previous year marked the first electoral victory for a native-born Coloradan in a gubernatorial race since 1958 (Vanderhoof had ascended from the Lieutenant Governorship when John Arthur Love was given a position in Richard Nixon's administration in 1973).

Counties

An enlargeable map of the 64 counties of the State of Colorado

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The State of Colorado is divided into 64 counties.[88] Counties are important units of government in Colorado since the state has no secondary civil subdivisions such as townships. Two of these counties, the City and County of Denver and the City and County of Broomfield, have consolidated city and county governments.

Nine Colorado counties have a population in excess of 250,000 each, while eight Colorado counties have a population of less than 2,500 each. The ten most populous Colorado counties are all located in the Front Range Urban Corridor.

The 15 Colorado counties with a population of at least 50,000

Rank County 2013 Estimate 2010 Census Change
1 El Paso County 655,044 622,263 +5.27%
2 City and County of Denver 649,495 600,158 +8.22%
3 Arapahoe County 607,070 572,003 +6.13%
4 Jefferson County 551,798 534,543 +3.23%
5 Adams County 469,193 441,603 +6.25%
6 Larimer County 315,988 299,630 +5.46%
7 Boulder County 310,048 294,567 +5.26%
8 Douglas County 305,963 285,465 +7.18%
9 Weld County 269,785 252,825 +6.71%
10 Pueblo County 161,451 159,063 +1.50%
11 Mesa County 147,554 146,723 +0.57%
12 City and County of Broomfield 59,471 55,889 +6.41%
13 Garfield County 57,302 56,389 +1.62%
14 La Plata County 53,284 51,334 +3.80%
15 Eagle County 52,460 52,197 +0.50%

Metropolitan areas

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The United States Office of Management and Budget (OMB) has defined one Combined Statistical Area (CSA),[89] seven Metropolitan Statistical Areas (MSAs),[90] and seven Micropolitan Statistical Areas (μSAs)[91] in the state of Colorado.[92]

The most populous of the 14 Core Based Statistical Areas in Colorado is the Denver-Aurora-Broomfield, CO Metropolitan Statistical Area. This area had an estimated population of 2,599,504 on July 1, 2011, an increase of +2.20% since the 2010 United States Census.[93]

The more extensive Denver-Aurora-Boulder, CO Combined Statistical Area had an estimated population of 3,157,520 on July 1, 2011, an increase of +2.16% since the 2010 United States Census.[93]

The most populous extended metropolitan region in Rocky Mountain Region is the Front Range Urban Corridor along the northeast face of the Southern Rocky Mountains. This region with Denver at its center had an estimated population of 4,495,181 on July 1, 2012, an increase of +3.73% since the 2010 United States Census.[93]

Municipalities

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The state of Colorado currently has 271 active incorporated municipalities, including 196 towns, 73 cities, and two consolidated city and county governments.[94][95]

Colorado municipalities operate under one of five types of municipal governing authority. Colorado has one town with a territorial charter, 160 statutory towns, 12 statutory cities, 96 home rule municipalities (61 cities and 35 towns), and 2 consolidated city and county governments.

The skyline of downtown Denver with Speer Boulevard in the foreground
The 26 Colorado municipalities with a population of at least 25,000

Rank Municipality 2014 Estimate 2010 Census Change
1 City and County of Denver 663,862 600,158 +10.61%
2 City of Colorado Springs 445,830 416,427 +7.06%
3 City of Aurora 353,108 325,078 +8.62%
4 City of Fort Collins 156,480 143,986 +8.68%
5 City of Lakewood 149,643 142,980 +4.66%
6 City of Thornton 130,307 118,772 +9.71%
7 City of Arvada 113,574 106,433 +6.71%
8 City of Westminster 112,090 106,114 +5.63%
9 City of Pueblo 108,423 106,595 +1.71%
10 City of Centennial 107,201 100,377 +6.80%
11 City of Boulder 105,112 97,385 +7.93%
12 City of Greeley 98,596 92,889 +6.14%
13 City of Longmont 90,237 86,270 +4.60%
14 City of Loveland 72,651 66,859 +8.66%
15 City and County of Broomfield 62,138 55,889 +11.18%
16 City of Grand Junction 60,210 58,566 +2.81%
17 Town of Castle Rock 55,747 48,231 +15.58%
18 City of Commerce City 51,762 45,913 +12.74%
19 Town of Parker 49,857 45,297 +10.07%
20 City of Littleton 44,669 41,737 +7.02%
21 City of Northglenn 38,596 35,789 +7.84%
22 City of Brighton 36,765 33,352 +10.23%
23 City of Englewood 32,480 30,255 +7.35%
24 City of Wheat Ridge 31,034 30,166 +2.88%
25 City of Fountain 27,631 25,846 +6.91%
26 City of Lafayette 27,081 24,453 +10.75%

Unincorporated communities

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In addition to its 271 municipalities, Colorado has 187 unincorporated Census Designated Places and many other small communities.

The 16 Census Designated Places in Colorado with a population of at least 10,000

Rank Census Designated Place 2010 Census 2000 Census Change
1 Highlands Ranch 96,713 70,931 +36.35%
2 Security-Widefield 32,882 29,845 +10.18%
3 Ken Caryl 32,438 30,887 +5.02%
4 Dakota Ridge 32,005 NA NA
5 Pueblo West 29,637 16,899 +75.38%
6 Columbine 24,280 24,095 +0.77%
7 Clifton 19,889 17,345 +14.67%
8 Sherrelwood 18,287 17,657 +3.57%
9 Cimarron Hills 16,161 15,194 +6.36%
10 Welby 14,846 12,973 +14.44%
11 Fort Carson 13,813 10,566 +30.73%
12 Black Forest 13,116 13,247 −0.99%
13 Berkley 11,207 10,743 +4.32%
14 Cherry Creek 11,120 NA NA
15 The Pinery 10,517 7,253 +45.00%
16 Edwards 10,266 8,257 +24.33%

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Special districts

The state of Colorado has more than 3,000 districts with taxing authority. These districts may provide schools, law enforcement, fire protection, water, sewage, drainage, irrigation, transportation, recreation, infrastructure, cultural facilities, business support, redevelopment, or other services.

Some of these districts have authority to levy sales tax and well as property tax and use fees. This has led to a hodgepodge of sales tax and property tax rates in Colorado. There are some street intersections in Colorado with a different sales tax rate on each corner, sometimes substantially different.

Some of the more notable Colorado districts are:

  • The Regional Transportation District (RTD), which affects the counties of Denver, Boulder, Jefferson, and portions of Adams, Arapahoe, Broomfield, and Douglas Counties
  • The Scientific and Cultural Facilities District (SCFD), a special regional tax district with physical boundaries contiguous with county boundaries of Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas, and Jefferson Counties
    • It is a 0.1% retail sales and use tax (one penny on every $10).
    • According to the Colorado statute, the SCFD distributes the money to local organizations on an annual basis. These organizations must provide for the enlightenment and entertainment of the public through the production, presentation, exhibition, advancement or preservation of art, music, theater, dance, zoology, botany, natural history or cultural history.
    • As directed by statute, SCFD recipient organizations are currently divided into three "tiers" among which receipts are allocated by percentage.
      • Tier I includes regional organizations: the Denver Art Museum, the Denver Botanic Gardens, the Denver Museum of Nature and Science, the Denver Zoo, and the Denver Center for the Performing Arts. It receives 65.5%.
      • Tier II currently includes 26 regional organizations. Tier II receives 21%.
      • Tier III has over 280 local organizations such as small theaters, orchestras, art centers, and natural history, cultural history, and community groups. Tier III organizations apply for funding to the county cultural councils via a grant process. This tier receives 13.5%.
    • An 11-member board of directors oversees the distributions in accordance with the Colorado Revised Statutes. Seven board members are appointed by county commissioners (in Denver, the Denver City Council) and four members are appointed by the Governor of Colorado.
  • The Football Stadium District (FD or FTBL), approved by the voters to pay for and help build the Denver Broncos' stadium Sports Authority Field at Mile High
  • Local Improvement Districts (LID) within designated areas of southeast Jefferson and Boulder counties
  • Regional Transportation Authority (RTA) taxes at varying rates in Basalt, Carbondale, Glenwood Springs, Gunnison County

Federal politics

Presidential elections results
Year Republican Democratic
2012 46.12% 1,185,050 51.49% 1,322,998
2008 44.71% 1,073,584 53.66% 1,288,568
2004 51.69% 1,101,255 47.02% 1,001,732
2000 50.75% 883,745 42.39% 738,227
1996 45.80% 691,848 44.43% 671,152
1992 35.87% 562,850 40.13% 629,681
1988 53.06% 728,177 45.28% 621,453

Colorado is considered a swing state in both state and federal elections. Coloradans have elected 17 Democrats and 12 Republicans to the governorship in the last 100 years. In presidential politics, Colorado was considered a reliably Republican state during the post-World War II era, only voting for the Democratic candidate in 1964 and 1992. However, it became a competitive swing state by the turn of the century, and voted consecutively for Democrat Barack Obama in 2008 and 2012.

Colorado politics has the contrast of conservative cities such as Colorado Springs and liberal cities such as Boulder and Denver. Democrats are strongest in metropolitan Denver, the college towns of Fort Collins and Boulder, southern Colorado (including Pueblo), and a few western ski resort counties. The Republicans are strongest in the Eastern Plains, Colorado Springs, Greeley, and far Western Colorado near Grand Junction.

The state of Colorado is represented by its two United States Senators:

Colorado is represented by seven Representatives to the United States House of Representatives:

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Significant bills passed in Colorado

On the November 8, 1932 ballot, Colorado approved the repeal of alcohol prohibition more than a year before the Twenty-first Amendment to the United States Constitution was ratified.

In 2012, voters amended the state constitution protecting "personal use" of marijuana for adults, establishing a framework to regulate cannabis in a manner similar to alcohol. The first recreational marijuana shops in Colorado, and by extension the United States, opened their doors on January 1, 2014.[96]

Education

Colleges and universities in Colorado:

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Military installations

Colorado is currently the home of seven major military bases and installations.

Former Military installations and outposts include:

Protected areas

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Colorado is home to four national parks, eight national monuments, two national recreation areas, two national historic sites, three national historic trails, one national scenic trail, 11 national forests, two national grasslands, 42 national wilderness areas, two national conservation areas, eight national wildlife refuges, 44 state parks, 307 state wildlife areas, and numerous other scenic, historic, and recreational areas.

Units of the National Park System in Colorado:

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Sports

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Colorado has five major professional sports leagues, all based in the Denver metropolitan area. Colorado is the least populous state with a franchise in each of the major professional sports leagues.

The Pikes Peak International Hill Climb is a major hillclimbing motor race held at the Pikes Peak Highway.

The Cherry Hills Country Club has hosted several professional golf tournaments, including the U.S. Open, U.S. Senior Open, U.S. Women's Open, PGA Championship and BMW Championship.

Professional sports teams

Professional Sports Clubs in Colorado
Club Home First game Sport League
Denver Broncos Denver September 9, 1960 Football National Football League
Denver Barbarians Denver Spring 1967 Rugby Union Pacific Rugby Premiership
Denver Nuggets Denver September 27, 1967 Basketball National Basketball Association
Colorado Springs Sky Sox Colorado Springs June 18, 1988 Baseball Minor League Baseball (AAA)
Colorado Rockies Denver April 5, 1993 Baseball Major League Baseball
Colorado Avalanche Denver October 6, 1995 Ice hockey National Hockey League
Colorado Rapids Commerce City April 13, 1996 Soccer Major League Soccer
Colorado Mammoth Denver January 3, 2003 Lacrosse National Lacrosse League
Colorado Eagles Loveland October 17, 2003 Ice hockey ECHL
Denver Outlaws Denver May 20, 2006 Lacrosse Major League Lacrosse
Glendale Raptors Glendale Fall 2006 Rugby Union Pacific Rugby Premiership
Grand Junction Rockies Grand Junction June 18, 2012 Baseball Minor League Baseball (Rookie)
Colorado Springs Switchbacks FC Colorado Springs March 28, 2015 Soccer United Soccer League

College athletics

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The following universities and colleges participate in the National Collegiate Athletic Association Division I. The most popular college sports program is the University of Colorado Buffaloes, who used to play in the Big-12 but now play in the Pac-12. They have won the 1957 and 1991 Orange Bowl, 1995 Fiesta Bowl and 1996 Cotton Bowl Classic.

NCAA Division I athletic programs in Colorado
Team School City Conference
Air Force Falcons United States Air Force Academy Colorado Springs Mountain West[102]
Colorado Buffaloes University of Colorado Boulder Boulder Pac-12[103]
Colorado College Tigers[104] Colorado College Colorado Springs NCHC (men's hockey)[105]
Mountain West (women's soccer)
Colorado State Rams Colorado State University Fort Collins Mountain West
Denver Pioneers University of Denver Denver Summit[106]
Northern Colorado Bears University of Northern Colorado Greeley Big Sky[107]

See also

References

  1. [1]
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  6. 6.0 6.1 Elevation adjusted to North American Vertical Datum of 1988.
  7. The summit of Mount Elbert is the highest point of the Rocky Mountains of North America.
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  28. "Genocide Wiped Out Native American Population ", Discovery News, September 20, 2010.
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  30. Early explorers identified the Gunnison River in Colorado as the headwaters of the Colorado River. The Grand River in Colorado was later tentatively identified as the primary headwaters of the river. Finally in 1916, E.C. LaRue, the Chief Hydrologist of the United States Geological Survey, identified the Green River in southwestern Wyoming as the proper headwaters of the actual, overall Colorado River.
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  32. Report of the exploring expedition from Santa Fé, New Mexico, to the junction of the Grand and Green Rivers of the great Colorado of the West, in 1859: under the command of Capt. J. N. Macomb, Corps of topographical engineers, Volume 1 @ archive.org
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  38. Population of Colorado: Census 2010 and 2000 Interactive Map, Demographics, Statistics, Quick Facts
  39. 2010 Census Data
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  78. U.S. Individual Income Tax Return (2005) online copy. Retrieved September 26, 2006.
  79. Bls.gov; Local Area Unemployment Statistics
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  82. Year to Date Passenger Traffic
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  89. The United States Office of Management and Budget defines a Combined Statistical Area (CSA) as an aggregate of adjacent Core Based Statistical Areas that are linked by commuting ties.
  90. The United States Office of Management and Budget defines a Metropolitan Statistical Area (MSA) as a Core Based Statistical Area having at least one urbanized area of 50,000 or more population, plus adjacent territory that has a high degree of social and economic integration with the core as measured by commuting ties.
  91. The United States Office of Management and Budget defines a Micropolitan Statistical Area (μSA) as a Core Based Statistical Area having at least one urban cluster of at least 10,000 but less than 50,000 population, plus adjacent territory that has a high degree of social and economic integration with the core as measured by commuting ties.
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  97. By legislative act enacted August 1, 2012, approved by Governor John Hickenlooper.
  98. 98.0 98.1 Managed by the United States Department of Agriculture, National Forest Service.
  99. Jointly managed by the United States Department of the Interior, Bureau of Land Management and the United States Department of Agriculture, National Forest Service.
  100. Managed by the United States Department of the Interior, Bureau of Land Management.
  101. Jointly managed by the United States Department of Agriculture, National Forest Service, and the United States Department of the Interior, National Park Service and Bureau of Land Management.
  102. Several Air Force teams participate in other conferences, or as independents, in sports that the MW does not sponsor:
  103. Several Colorado teams participate in other conferences in sports that the Pac-12 does not sponsor:
  104. Colorado College is a member of NCAA Division III, but fields Division I teams in men's ice hockey and women's soccer.
  105. The National Collegiate Hockey Conference is a National Collegiate Athletic Association Division I ice hockey-only conference.
  106. Several Denver teams participate in other conferences in sports that The Summit League does not sponsor:
  107. Several Northern Colorado teams participate in other conferences in sports that the Big Sky does not sponsor:

Further reading

  • Explore Colorado, A Naturalist's Handbook, The Denver Museum of Natural History and Westcliff Publishers, 1995, ISBN 1-56579-124-X for an excellent guide to the ecological regions of Colorado.
  • The Archeology of Colorado, Revised Edition, E. Steve Cassells, Johnson Books, Boulder, Colorado, 1997, trade paperback, ISBN 1-55566-193-9.
  • Chokecherry Places, Essays from the High Plains, Merrill Gilfillan, Johnson Press, Boulder, Colorado, trade paperback, ISBN 1-55566-227-7.
  • The Tie That Binds, Kent Haruf, 1984, hardcover, ISBN 0-03-071979-8, a fictional account of farming in Colorado.
  • Railroads of Colorado: Your Guide to Colorado's Historic Trains and Railway Sites, Claude Wiatrowski, Voyageur Press, 2002, hardcover, 160 pages, ISBN 0-89658-591-3

External links

State government
Federal government
Other
Preceded by List of U.S. states by date of admission to the Union
Admitted on August 1, 1876 (38th)
Succeeded by
North Dakota

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