San Martín Region

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San Martín Region
Official seal of San Martín Region
Location of the San Martín Region in Peru
Location of the San Martín Region in Peru
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Country Peru
Subdivisions 10 provinces and 77 districts
Largest city Tarapoto
Capital Moyobamba
 • President Cesar Villanueva Arévalo (Independent)
 • Total 51,253.31 km2 (19,789.01 sq mi)
Highest elevation 3,080 m (10,100 ft)
Lowest elevation 190 m (620 ft)
Population (2005 Census)
 • Total 778,545
 • Density 15/km2 (39/sq mi)
Dialing code 042
ISO 3166 code PE-SAM
Principal resources Coffee, rice, yucca, cocoa, tobacco, cebu cattle.
Poverty rate 62.4%
Percentage of Peru's GDP 1.85%

San Martín is a region in northern Peru. Most of the region is located in the upper part of the Peruvian Amazon rainforest. Its capital is Moyobamba and the largest city in the region is Tarapoto.




The territory of San Martín can be divided into four morphological zones:

  • the west, near the eastern side of the Andean Plateau, with a rough topography and many ravines;
  • the zone of the wide valleys, with stepped terraces formed by the Huallaga River and its affluents, where population is engaged mainly in cattle and agriculture;
  • the southwest zone, with a relief coming down from the Cordillera Azul, with low elevation, where is an impressive canyon known as Cajón de Sión, which finishes in the Cayumba rapids;
  • a small lower jungle zone with areas easily flooded and with almost no accidents.

The Huallaga River is one of the most important rivers in the region. It forms, together with its tributaries a hydrographical system which drains all of the region's territory. The Pongo de Aguirre is an important canyon formed by the Huallaga going through the Andean hills.


Tupac Yupanqui entered and subdued the Inca dominion, the province of Moyobamba, known back then by its native name, Muyupampa. In 1539, Spaniard Alonso de Alvarado reached the Mayo River and founded a city he named Santiago de los Valles de Moyobamba, which later became the capital of Maynas. Another important personality was Priest Manuel Sobreviela who, between 1787 and 1790, accomplished traveling across the Huallaga River and subsequently published a map named "Planning for the course of the Huallaga and Ucayali Rivers and for the Pampa del Sacramento".

On August 19, 1821, Moyobamba was the first Peruvian city in declaring its independence.

The construction of a highway in recent years has increased the exchange of different products, benefitting the economy of this region.

Political division

Map of the San Martín region showing its provinces

The region is divided into 10 provinces (Spanish: provincias, singular: provincia), which are composed of 77 districts (distritos, singular: distrito).

The provinces, with their capitals in parenthesis, are:

San Martín Peru



Gran Pajáten is a pre Inca complex of circular slate buildings decorated with figures of flying condors situated on the border with La Libertad. Due to its difficult access, tourism is not yet possible at the site.

See also

External links

  • (Spanish) Gobierno Regional San Martín - San Martín Regional Government official website
  • (Spanish) Proyecto Mono Tocon - Conservation and study programme for the threatened and endemic titi monkey of San Martin (Callicebus oenanthe). El Tití de San Martín (Callicebus oenanthe), localmente conocido como Mono Tocón, es una de las especies de primates más amenazadas del Perú, recientemente considerada por la UICN como en peligro de extinción.