The Upper Columbia River is rich in cultural and natural significance. For more than 9000 years, people have gathered along the banks of the river to fish and trade with each other. Missionaries and explorers for the Hudson Bay Company and the Northwest Trading Company mapped the area and developed relationships with the tribes, which lived here. In 1941, damming of the Columbia River as part of the Columbia River Basin project created a 130-mile long lake. Named for President Franklin D. Roosevelt, the lake is now the largest recreation feature in the Lake Roosevelt National Recreation Area. Opportunities for boating, fishing, swimming, camping, canoeing and visiting historic Fort Spokane and St. Paul's Mission are highlights of visiting Lake Roosevelt National Recreation Area.