Eastern Washington Sights

Potholes Reservoir

Potholes Reservoir Review

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

    Contact Information

  • Address: Hwy. 17 to Hwy. 170, Moses Lake, WA
  • Phone: 509/754-4624
  • Cost: $11 parking permit
  • Hours: Daily-24 hrs
  • Location: Moses Lake

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