Spokane and Eastern Washington Sights

Potholes Reservoir

Published 04/05/2016

Fodor's Review

An artificial lake in a natural depression carved by the huge Spokane Floods, the reservoir's waters are contained by O'Sullivan Dam, one of the country's largest earth-filled dams.

Sight Information


Hwy. 17 to Hwy. 170, Moses Lake, Washington, 99344, United States



Website: wdfw.wa.gov

Sight Details:

  • Daily 24 hrs

Published 04/05/2016


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