Riffe Lake

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Riffe Lake
Riffe Lake.jpg
LocationLewis County, Washington, United States
Coordinates46°32′4″N 122°25′43″W / 46.53444°N 122.42861°W / 46.53444; -122.42861Coordinates: 46°32′4″N 122°25′43″W / 46.53444°N 122.42861°W / 46.53444; -122.42861[1]
Primary inflowsCowlitz River
Primary outflowsCowlitz River
Catchment area1,400 sq mi (3,630 km2)[2]
Basin countriesUnited States
Max. length23.5 mi (37.8 km)[2]
Surface area11,830 acres (47.9 km2)[3]
Max. depth360 feet (110 m)
Shore length152 mi (83.7 km)[2]
Surface elevation778.5 ft (237 m)[2]
1 Shore length is not a well-defined measure.

Riffe Lake is a 23.5 mi (38 km) long reservoir on the Cowlitz River in the U.S. state of Washington. Originally named Mossyrock Lake,[4] then later Davisson Lake, it was created in 1968 with the construction of Mossyrock Dam.[2] The lake was renamed in 1976 after the community of Riffe, which was inundated by the lake. The residents of Kosmos, Washington were also relocated as the lake's water level would submerge much of the town.

The lake contains species of fish including rainbow and brown trout, landlocked coho, bass both large mouth and small mouth, bluegill, crappie, and perch.[5]

See also[edit]


  1. ^ a b U.S. Geological Survey Geographic Names Information System: Riffe Lake
  2. ^ a b c d e f Cowlitz River Project Statistics, Tacoma Power
  3. ^ a b Cowlitz River Project Mossyrock Dam, Tacoma Power
  4. ^ "Riffe Lake - Fish Washington | Washington Department of Fish & Wildlife". wdfw.wa.gov. Retrieved 2016-02-03.
  5. ^ http://www.washingtonlakes.com/LakeInfo.aspx?id=147&t=1