Sullivan Lake

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Sullivan Lake is a large and deep lake in the Colville National Forest bordering the Salmo-Priest Wilderness Area. The lake is natural, but was enlarged by a dam on Harvey Creek in 1931. It is fed primarily by Harvey Creek, Hall Creek, and Noisy Creek, and drains into Sullivan Creek and later the Pend Oreille River. At 3.6 miles long and with an average width of 0.6 miles, it is one of the largest lakes in Northeast Washington at 1,380 acres. It is also one of the deepest, with a maximum depth of 332 feet, a mean depth of 193 feet, and containing roughly 270,000 acre-feet of water. The lake is mostly undeveloped and is enjoyed by campers, boaters, anglers, and other recreationalists. There are campgrounds at both the north and south ends of the lake operated by the Colville National Forest Service, and a hiking trail that runs the entire eastern shore.