Grand Coulee
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Grand Coulee is an ancient river bed in the U.S. state of Washington. This National Natural Landmark stretches for about 60 miles southwest from Grand Coulee Dam to Soap Lake, being bisected by Dry Fa
Grand Coulee, below Dry Falls. The layering effect of periodic basalt lava flows is visible.
Looking northward in Grand Coulee
Steamboat Rock in the Grand Coulee
Part of the Grand Coulee has been dammed and filled with water as part of the Columbia Basin Project.
Grand Coulee Dam
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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
…Grand Coulee is an ancient river bed in the U.S. state of Washington. This National Natural Landmark stretches for about 60 miles (97 km) southwest from Grand Coulee Dam to Soap Lake, being bisected by Dry Falls into the Upper and Lower Grand Coulee. Grand Coulee is a large coulee on the Columbia River Plateau. This…
Grand Coulee Dam Panorama
The dam site before construction, looking south
The east-side cofferdam after the west base was complete
The base of the dam in 1938