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.
Dry Falls
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Dry Falls is a 3.5-mile-long scalloped precipice with four major alcoves, in central Washington scablands. This cataract complex is on the opposite side of the Upper Grand Coulee from the Columbia Riv
Grand Coulee
…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 area has underlying granite bedrock, formed…
Dry Falls