Lake Pend Oreille (pronounced: pond-o-ray) is the largest lake in the northern Idaho Panhandle, with a surface area of 148 square miles (380 km²). It is 43 miles (69 km) long, and 1,150 feet (350 m) deep in some regions, making it the fifth deepest in the United States. 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 Bonner County.