Banks Lake, Reservoir in central Washington, United States.
Banks Lake extends for 27 miles through the Grand Coulee, featuring two earth-fill dams that maintain its water level at 1,574 feet elevation.
The reservoir was constructed as part of the Columbia Basin Project and named after Frank A. Banks, the construction supervisor of Grand Coulee Dam.
The lake supports regional agriculture through irrigation systems while providing year-round fishing opportunities for multiple fish species including Rainbow Trout and Walleye.
Access to Banks Lake is available through State Route 155, with numerous boat launches and camping facilities located along its 135-mile shoreline.
Water from the Columbia River is pumped 280 feet upward into Banks Lake, which holds approximately 1,237,000 acre-feet of water in the former Ice Age channel.
Location: Washington
GPS coordinates: 47.83750,-119.17611
Latest update: May 11, 2025 12:46
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