Lake Pend Oreille (pronunciation: /pɒndəˈreɪ/) in the northern Idaho Panhandle is the largest lake in the U.S. state of Idaho and the 38th-largest lake by area in the United States, with a surface area of 148 square miles (380 km2). It is 43 miles (69 kilometers) long, and 1,150 feet (350 meters) deep in some regions, making it the fifth-deepest in the nation. It is fed by the Clark Fork River and the Pack River, and drains via the Pend Oreille River. It is surrounded by national forests and a few small towns, with the largest population on the lake at Sandpoint. The majority of the shoreline is non-populated. All but the southern tip of the lake is in Boner County. The southern tip is in Kootenai County and is home to Farragut State Park, formerly the Farragut Naval Training Station durin