| Potholes Reservoir is part of the Columbia Basin Project and formed by O'Sullivan Dam. "Potholes" refers to the many glacial depressions in ancient sand dunes here. These potholes and small islands make this area one of the best in Washington for birding. The best birding is from March through October: Sandhill cranes and waterfowl in late February, raptors in April, Sage Thrasher, Lark Sparrow, Burrowing and Long-eared Owls and shorebirds in May. With the August reservoir drawdown, the exposed mudflats attract shorebirds such as a variety of sandpipers, stilts, plovers and curlews. Access to the reservoir is adequate except the west side is somewhat limited. Fish species include yellow perch, crappie, largemouth bass, rainbow trout, and walleye. Fishing is year-round. Other wildlife such as rabbits, coyotes, deer, elk, and bears have been spotted around the area. Hunting is permitted during specified seasons. Recreation in the area is full of variety. All types of water sports are allowed. Some of these include water skiing, boating, swimming, kayaking, and tubing. Picnicking on the shores of the reservoir is very popular as well. Most of the areas are covered to provide shelter from intense sun or the occasional rain shower. ATV trails line the outside area into the state park as well. |
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