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Mar Don Resort

Sunny Eastern Washington's Full Service Family Resort

We're a resort located on the shores of Potholes Reservoir, home of 25,000 acres of water. Fish, swim, water ski, play and relax. We're on the west end of O'Sullivan Dam, the longest earthen dam in the US - 3 1/2 miles long.

  • Open All Year
  • Motel Units
  • RV Park
  • Tenting
  • Play Ground
  • Tackle * Gifts
  • Grocery
  • Marina
  • Boat Moorage
  • Boat Rentals (motor, paddle and row boats)
  • Cafe & Lounge

If fishing and boating are not the plan for the day, sidetrips are an easy drive from the resort. Grand Coulee Dam, Hunter Hill Vineyard & Tasting Room, State Central Speedway, Museums, Golf, Wanapum Dam Interpretative Center, just to name a few.

Plan your vacation to the Pacific Northwest with a packet of information in the mail.. Location: 8198 Hwy 262 East, Othello Washington 99344 Telephone 509-346-2651 Toll Free: 800-416-2736 Fax 509-346-9493

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