Mowich River

Mowich River
South Mowich River
The Mowich River is shown highlighted on a map of the Puyallup River watershed
Location
CountryUnited States
StateWashington
CountyPierce
Physical characteristics
SourceMount Rainier
  locationSouth Mowich Glacier
  coordinates46°52′19″N 121°49′34″W / 46.87194°N 121.82611°W / 46.87194; -121.82611
  elevation7,000 ft (2,100 m)
MouthPuyallup River
  coordinates
46°54′2″N 122°1′49″W / 46.90056°N 122.03028°W / 46.90056; -122.03028
  elevation
1,680 ft (510 m)
Length30 mi (48 km)
Basin features
Tributaries 
  leftRushingwater Creek
  rightNorth Mowich River

The Mowich River is a river in the U.S. state of Washington. Its watershed drains a portion of the western side of Mount Rainier, part of the Cascade Range. The river has two main headwater branches, the South Mowich River and the North Mowich River. The South Mowich is significantly larger and sometimes considered the main river. The Mowich and its tributaries drain several of Mount Rainier's glaciers. The upper portion of its watershed is contained within Mount Rainier National Park. The river flows into the Puyallup River in the foothills west of Mount Rainier.

The name "Mowich" come from the Chinook Jargon word for "deer". Originally used for Mowich Lake, the name was later applied to the river and the glacier.