The Pend Oreille River begins at Lake Pend Oreille in Bonner County, Idaho in the Idaho Panhandle, draining the lake from its western end near Sandpoint (The Clark Fork River enters the lake from its eastern end). It flows west, receiving the Priest River from the north at the town of Priest River, then flows into southern Pend Oreille County in northeastern Washington at Newport. Once in Washington it turns north, flowing along the eastern side of the Selkirk Mountains. It flows roughly parallel to the Idaho border for approximately 50 miles, through the Colville National Forest, past Tiger and Metaline Falls. It crosses the international border into southeastern British Columbia, looping west for about 15 miles and joining the Columbia River from the east, approximately 0.2 miles (0.32 k