Geology and Minerals

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.

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See also

• ▸Eldgjá
• ▸Renaissance
• ▸19th century in ichnology

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