Mancos River

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Mancos River[1]
Four Corners, Southwestern U.S.jpg
Mancos River, San Juan River confluence (Four Corners)
(Carrizo Mountains at southwest)
Basin features
Main source Confluence of West Mancos River and East Mancos River
37°21′30″N 108°15′12″W / 37.35833°N 108.25333°W / 37.35833; -108.25333
River mouth Confluence with San Juan
4,639 ft (1,414 m)
36°59′00″N 108°58′50″W / 36.98333°N 108.98056°W / 36.98333; -108.98056Coordinates: 36°59′00″N 108°58′50″W / 36.98333°N 108.98056°W / 36.98333; -108.98056
Progression San JuanColorado

The Mancos River, formerly also El Rio de San Lazaro, is an 85.4-mile-long (137.4 km)[2] northeast tributary of the San Juan River. It flows from the confluence of West Mancos River and East Mancos River near Mancos, Colorado and joins the San Juan near Four Corners Monument in New Mexico.[1]

The river was named after an incident during which a horse rider hurt his hand while crossing, the word Mancos being derived from Spanish meaning "one-armed".[3]

See also[edit]


  1. ^ a b "Mancos River". Geographic Names Information System. United States Geological Survey. Retrieved 2011-01-29. 
  2. ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-04-05 at WebCite, accessed March 21, 2011
  3. ^ Dawson, John Frank. Place names in Colorado: why 700 communities were so named, 150 of Spanish or Indian origin. Denver, CO: The J. Frank Dawson Publishing Co. p. 33.