The enormous reservoir, 130-mile-long Lake Roosevelt, was formed by the Grand Coulee Dam on the Columbia River and the Spokane River, a Bureau of Reclamation project. 18 campgrounds surround the vast expanse of water, some of which are very developed, and some of which are primitive, boat-in sites. Developed campgrounds are generally open to RVs and fully accessible; numerous day use areas and overlooks also surround the reservoir. Water sports are clearly the main attraction here: motorized boating, canoeing, kayaking, windsurfing, waterskiing, snorkeling, sailing, swimming, and of course, fishing. Although the construction of the dam in 1941 destroyed one of the foremost salmon fisheries in the northwest, the lake is currently stocked with walleye, perch, rainbow trout, crappie, and catfish. A few self-guided nature trails are open around the south shore of the lake; for information, stop at either the Coulee Dam Visitor Center (BOR) or the Fort Spokane Visitor Center. At Fort Spokane, you can get a taste of the areas rich human history, over the last 9000 years. Another historical site is at the very north end of the reservoir, at the St. Pauls Mission State Historic Site in Kettle Falls.