Soto La Marina River
|Soto La Marina River|
|Origin||General Zaragoza, Nuevo Leon|
|Mouth||La Pesca, Tamaulipas|
|Length||416 km (258 miles)|
|Source elevation||3,000 mts. (9,800 ft)|
|Avg. discharge||2.086 million cubic meters annually|
|Basin area||21,183 sq. km (8,108 sq. miles)|
The Soto La Marina River or Soto la Marina is a river of Mexico.
The headwaters of the Soto La Marina are in the Sierra Madre Oriental in pine-oak forests at an elevation of about 3,000 mts (9,800 ft) in the municipality of General Zaragoza, Nuevo Leon. Called the Rio Blanco, it initially flows north, then turns east near Aramberri and enters the state of Tamaulipas where it is called the Purificacion river. The Rio Purificación joins with the Rio Corona near the town of Padilla, Tamaulipas where the river is damned to create the Vicente Guerrero Reservoir. From there downriver the river is called the Soto La Marina. Entering the coastal plain the river passes through the town of Soto La Marina. It forms a delta at its mouth and enters the Gulf of Mexico via two outlets. The lowest 50 kilometers (31 miles) of the river are navigable by boats. The Soto La Marina is the thirteenth longest river in Mexico. Its course through Tamaulipas is in a semi-arid area characterized by low trees and brush. 
The Spaniard Francisco de Garay discovered the Soto La Marina River in 1523. Garay, Governor of Jamaica, led an expedition of 600 men to form a colony on the Pánuco River, but landed by mistake one hundred miles north at the mouth of the Soto La Marina which he called the River of Palms (Rio de las Palmas). He reconnoitered by sending a small boat upriver about 25 miles, probably reaching the present day city of Soto la Marina. The explorers found 40 Indian encampments along the river, indicating a large population, although the Indians apparently did not practice agriculture. The Indians plied the river in canoes and, although initially friendly, became hostile. Realizing that the river was not the Pánuco, Garay ordered on an overland march southward to the Panuco.
Some of the Geography section of this article was translated from the Spanish Wikipedia article, "Rio Soto La Marina."
- Fuente: Sistema nacional de Información Estadística y Geográfica. «Vertiente y principales ríos - longitud - periodo de observación - 2004 - nacional». Disponible en: 
- Salinas, Martin, Indians of the Rio Grande Delta. Austin: University of Texas Press, 1990, pp. 23, 73.
- "Garay, Francisco de" The Handbook of Texas Online http://tshaonline.org/handbook/online/articles/fga18, accessed 25 Feb 2013
- Atlas of Mexico, 1975 (http://www.lib.utexas.edu/maps/atlas_mexico/river_basins.jpg).
- The Prentice Hall American World Atlas, 1984.
- Rand McNally, The New International Atlas, 1993.
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