Interpretive Display
Wells: Columbia River, WA
The Wells Hydroelectric Project is owned by Public Utility District No.1 of Douglas County. Located in Azwell, WA, the Wells Project is unique in its design of combining the powerhouse, spillway, switchyard and fish facilities in a single…
Mossyrock: Cowlitz River, WA
On the Cowlitz River, 13 miles upstream from the Mayfield Dam, Mossyrock Dam began generating power in 1968. It rises 605 feet from bedrock and created 23-mile long Riffe Lake. It is the highest dam in the Pacific Northwest.