Okanagan Lake

Okanagan Lake
File:Wonderful Okanagan Lake.jpg
Location	British Columbia
Coordinates
Lake type	Fjord Lake, Monomictic, Oligotrophic
Primary inflows	Mission Creek, Vernon Creek, Trout Creek, Penticton Creek, Equesis Creek, Kelowna Creek, Peachland Creek and Powers Creek
Primary outflows	Okanagan River
Catchment area	6,200 km2 (2,400 sq mi)
Basin countries	Canada
Max. length	135 kilometres (84 mi)
Max. width	5 kilometres (3.1 mi)
Surface area	351 square kilometres (136 sq mi)
Average depth	76 m (249 ft)
Max. depth	232 m (761 ft)
Water volume	24.6 cubic kilometres (5.9 cu mi)
Residence time	52.8 years
Shore length1	270 kilometres (170 mi)
Surface elevation	342 m (1,122 ft)
Frozen	1906/07 & 1949/50
Islands	Rattlesnake Island, Grant Island
Settlements	Vernon, Lake Country, Kelowna, West Kelowna, Peachland, Summerland, Penticton
References
1 Shore length is not a well-defined measure.

Okanagan Lake winds between Kelowna (foreground) and Westbank (background).

Okanagan Lake is a large, deep lake in the Okanagan Valley of British Columbia, Canada. The lake is 135 km long, between 4 and 5 km wide, and has a surface area of 348 km².

Hydrography

Okanagan Lake is composed of three basins: a larger north basin, a central or mid basin, and a southern basin. Major inflows include Mission, Vernon, Trout, Penticton, Equesis, Kelowna, Peachland and Powers Creeks. The lake is drained by the Okanagan River, which exits the lake's south end via a canal through the city of Penticton to Skaha Lake, whence the river continues southwards into the rest of the South Okanagan and through Okanogan County, Washington to its confluence with the Columbia.

The lake's maximum depth is 232 metres near Grant Island (Nahun Weenox). There is one other island known as Rattlesnake Island, much farther south by Squally Point. Some areas of the lake have up to 750 metres of glacial and post-glacial sediment fill which were deposited during the Pleistocene Epoch.

Notable features of the Okanagan Valley include terraces which were formed due to the periodic lowering of the lake's predecessor, glacial Lake Penticton. These terraces are now used extensively for agriculture such as fruit cultivation.

Geographical context

Cities bordering the lake include Vernon in the north, Penticton in the south, and Kelowna, as well as the municipalities of Lake Country (north of Kelowna), West Kelowna (west of Kelowna), Peachland (south of West Kelowna), and Summerland (north-west of Penticton). Unincorporated communities include Naramata (north-east of Penticton).

Various lake features include Rattlesnake Island (a small island east of Peachland), Squally Point (a popular cliff-diving area) & Fintry Delta on the west side.

The five-lane William R. Bennett Bridge, a floating bridge with a high boat passage arch connects Kelowna to the city of West Kelowna and the community of Westbank. This bridge replaced the three-lane floating Okanagan Lake Bridge on May 30, 2008 which had a lift span for passage of large boats.

Recreation

Many parks and beaches are found along the shores of the lake, which make boating and swimming very popular activities.

The lake is home to several species of fish, including rainbow trout and kokanee. It is said by some to be home to its own lake monster - a giant serpent-like creature named Ogopogo.

Images

• 

  Maude Roxby Wetlands sunset

• Play media

  Boyce-Gyro Beach on a Winter Afternoon

• 

  Swimmers in Peachland

• Play media

  Half Way Bay during Golden Hour in Winter

• 

  Late Winter Reflections on Lake Okanagan

See also

• Okanagan Falls
• Okanagan people
• Okanagan Trail
• List of tributaries of the Columbia River
• Kelowna Hydrofest
• Skaha Lake
• Summerhill Pyramid Winery

External links

• Bacon Magazine: The Ogo Pogo
• Media related to Okanagan Lake at Wikimedia Commons