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Nat'l Recreation Area

Grand Coulee Dam

Washington · WA

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We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this park using the links above before you go — you are responsible for compliance. Last verified by us: May 20, 2026. Our copy is more than a month old — please reconfirm with the agency before relying on it.Spot an error in our data?

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Park entrance fees, hours, and ranger-issued closures change without notice and may be out of date here. Always confirm current conditions, fees, and access restrictions with the managing agency before you travel. Outdoors is not responsible for closures, fines, or denied entry resulting from outdated information.

Grand Coulee Dam, part of the Columbia Basin Project, located on the Columbia River in Washington State, is one of the largest concrete structures in the world. The dam is also the largest hydropower producer in the United States with a total generating capacity of 6,809 megawatts. The visitor center is open daily 9 a.m. to 5 p.m., except for Thanksgiving, December 25, and January 1. From Memorial Day through September 30 the visitor center is open from 8:30 a.m. until the end of the laser light show each evening. Free guided tours are available from 10 a.m. to 5 p.m.

Source: recreation.gov

From Wikipedia

Grand Coulee Dam is a concrete gravity dam on the Columbia River in the U.S. state of Washington, built to produce hydroelectric power and provide irrigation water. Constructed between 1933 and 1942, Grand Coulee originally had two powerhouses. The third powerhouse ("Nat"), completed in 1974 to increase energy production, makes Grand Coulee the largest power station in the United States by nameplate capacity at 6,809 MW.

Source: Wikipedia — text licensed CC BY-SA 4.0. Verify alerts and operational details with the managing agency below.

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