West Mancos River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed March 21, 2011 tributary of the Mancos River in Montezuma County, Colorado. The river flows from the confluence of its North and South forks in the San Juan National Forest to a confluence with the East Mancos River that forms the Mancos River.
See also List of rivers of Colorado List of tributaries of the Colorado River
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