Potholes State Park

Potholes State Park: Desert Oasis on Potholes Reservoir with Abundant Water Recreation

Potholes State Park in Othello combines the unique desert landscape of eastern Washington with exceptional freshwater recreation on the 773-acre park surrounding Potholes Reservoir. Created following completion of O’Sullivan Dam in 1949, this distinctive park features 6,000 feet of freshwater shoreline with sand dunes, rocky canyons, and abundant water activities in a setting where dozens of nearby lakes create an oasis effect in the high desert, making it a premier destination for fishing, boating, water sports, and family camping just minutes from the Columbia Wildlife Refuge.

Potholes State Park Fast Facts

Park Overview

Potholes State Park represents a unique convergence of desert and water environments, where the completion of O’Sullivan Dam transformed the surrounding landscape into a recreational paradise that attracts visitors from across the Pacific Northwest. Located on the southern shore of Potholes Reservoir, 13 miles from both Moses Lake and Othello, this park showcases the remarkable contrast between eastern Washington’s arid terrain and the abundance of freshwater resources created by the Columbia River irrigation system.

The park’s desert setting features distinctive sand dunes, rocky canyons, and sagebrush landscape, while the massive reservoir and dozens of nearby lakes in the Columbia National Wildlife Refuge create a unique oasis environment. This combination provides exceptional opportunities for both terrestrial and aquatic recreation, from exploring desert trails and wildlife viewing to enjoying world-class fishing and water sports in the reservoir’s productive waters.

Activities & Recreation

Facilities & Amenities

Potholes State Park provides comprehensive facilities for comfortable family recreation in the desert environment. Modern restrooms with hot showers serve all camping areas, while the park features three picnic shelters with four tables each, plus 73 additional picnic tables distributed throughout well-shaded lawn areas. Five watercraft launches and 60 feet of dock accommodate boaters, while a trailer dump station serves RV campers. Additional amenities include volleyball courts (equipment not provided), playground facilities, horseshoe pits, and a park store. The proximity to Columbia Wildlife Refuge enhances wildlife viewing opportunities just 2 miles from the park.

Camping & Accommodations

The park offers diverse accommodation options for every camping preference. Standard camping includes 121 regular sites and 60 full-hookup sites accommodating RVs up to 50 feet long. Five cabins provide comfortable alternatives, with cabins C85 and C86 sleeping six guests and cabins C62, C110, and C111 accommodating four guests each. Cabins feature heating and air conditioning, ceiling fans, beds, small tables, exterior picnic tables, and fire pits, though guests must bring linens and cooking is allowed only in kitchenette-equipped units. The 50-person group camp offers a grassy, well-shaded area with nearby creek access for excellent trout and bass fishing. Pet-friendly options are available in select cabins with additional fees.

Planning Your Visit

Potholes State Park requires a Discover Pass for day visits, available as annual passes ($45) or day passes ($10). The park operates year-round with extended summer hours from 6:30 a.m. to dusk and winter hours from 8 a.m. to dusk. Reservations are strongly recommended for camping and cabins, particularly during busy summer months when the park becomes extremely popular for water recreation. The desert location provides abundant sunshine but can become quite hot during summer, making spring and fall ideal for comfortable outdoor activities. The park’s location offers easy access to additional attractions including nearby Columbia National Wildlife Refuge for enhanced wildlife viewing and bird watching opportunities.

What to Bring & Know

• Sun protection including hats, sunscreen, and protective clothing for the exposed desert environment
• Ample water supplies and electrolyte replacement for hot weather desert conditions
• Fishing licenses and appropriate gear for bass, trout, and walleye in productive reservoir waters
• Linens and personal items for cabin stays as these amenities are not provided
• Volleyball and recreational equipment as courts are available but gear is not provided

Final Word

Potholes State Park delivers an exceptional desert oasis experience where the stark beauty of eastern Washington’s high desert meets abundant freshwater recreation opportunities on Potholes Reservoir, creating an unforgettable family destination.

This park is part of the Explore Washington State Parks Directory—showcasing all of Washington’s State Parks from the rugged Pacific coast to the Cascade peaks. Whether you’re camping under old-growth forests, hiking scenic trails, or discovering local history, we’re highlighting the places where people connect with the state’s incredible natural and cultural heritage—all year long.s