Click HERE Douglas Lake a 30,400 acres Reservoir Lake nestled in the foothills of the Great Smokey Mountains. It is formed by the French Broad River and tributaries of the Nolichucky and Pigeon Rivers and varies about 44 feet from summer to winter to provide seasonal flood storage.. Bordering counties and cities are: Cocke County Newport, Hamblen County  Morristown, White Pine. Jefferson County Dandridge, Pine, Jefferson City, Baneberry Sevierville. Marinas and Docks: Smoky Mountain Lake Rentals at Gator Point Marina Swann's Marina Lighthouse Point Marina Inc Douglas Creek Boat Dock Frank's Boat Repair Smokey Mountain Leisure Rental Restaurants: Cowboy's on The Water Dandridge Point Restaurant Mountain Harbor Inn.