East River (Colorado)

East River
The river in March 2014
Physical characteristics
Source 
  locationEmerald Lake
  coordinates39°00′29″N 107°02′29″W / 39.00806°N 107.04139°W / 39.00806; -107.04139
Mouth 
  location
Confluence with Taylor River
  coordinates
38°39′49″N 106°50′50″W / 38.66361°N 106.84722°W / 38.66361; -106.84722
  elevation
8,005 ft (2,440 m)
Basin features
ProgressionGunnisonColorado
Tributaries 
  rightSlate River

East River is a 38.3-mile-long (61.6 km) stream in Gunnison County, Colorado, United States. It flows south from Emerald Lake in the Maroon Bells Wilderness to a confluence with the Taylor River that forms the Gunnison River.