Riffe Lake, WA

Riffe Lake is a long reservoir on the Cowlitz River in the U.S. state of Washington. The 23.5 mi lake was created by the construction of Mossyrock Dam, the tallest dam in the state, in 1968 by Tacoma City Light.
  • Location: Lewis County, Washington, United States
  • Primary inflows: Cowlitz River
  • Primary outflows: Cowlitz River
  • Catchment area: 1,400 sq mi (3,630 km²)
  • Basin countries: United States
  • Max. length: 23.5 mi (37.8 km)
  • Surface area: 11,830 acres (47.9 km²)

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Data from: en.wikipedia.org