Lake Roosevelt was created when the Grand Coulee dam was built on the Columbia River as part of the Columbia River Basin project in 1941. The lake was named for President Franklin D. Roosevelt. Roosevelt is roughly 150 miles long stretching from Canada to the Grand Coulee dam with depths up to 375 feet. The lake is surrounded by state, private, and tribal lands so check the regulations for the area you plan to fish. The lake is stocked annually with over 500,000 rainbow trout and 500,000 kokanee. The rainbows average 11-16 inches, but holdover fish can grow to over 10 pounds. The fishing for rainbows is best in the spring and fall. Walleye are also a much sought after fish in the lake and peak fishing is in mid-summer for them. Beyond these three primary fish, the lake hosts over 30 other species of fish including largemouth bass, smallmouth bass, perch, and crappie.