East Mancos River

{{Infobox river

| name = East Mancos River{{cite gnis|id= 178914 |name=East Mancos River|accessdate= 2011-02-04}}

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| source1_location =

| source1_coordinates= {{coord|37|25|27|N|108|05|38|W}}

| mouth_location = Confluence with West Mancos

| mouth_coordinates = {{coord|37|21|26|N|108|15|17|W|display=inline,title}}

| progression = Mancos—San Juan—Colorado

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| source1_elevation =

| mouth_elevation = {{convert|7241|ft|m|abbr=on}}

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East Mancos River is a {{convert|12.2|mi|km|adj=mid|-long}}U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. [http://viewer.nationalmap.gov/viewer/ The National Map] {{webarchive|url=https://web.archive.org/web/20120329155652/http://viewer.nationalmap.gov/viewer/ |date=2012-03-29 }}, accessed March 21, 2011 tributary of the Mancos River in Montezuma County, Colorado. The river flows west from a source in the La Plata Mountains to a confluence with the West Mancos River that forms the Mancos River.