The Cowlitz Glacier is a large glacier on the southeast flank of Mount Rainier in Washington. The body of ice covers 1.3 square miles (3.4 km2) and has a volume of 6 billion ft3 (170 million m3).The glacier starts at an elevation of 10,700 feet (3,300 m) and flows southeast downhill. An adjacent glacier, the Paradise Glacier, is connected to this glacier. As it flows heads down the slopes of Rainier, another glacier, the Ingraham Glacier contributes ice to this glacier. The joined glaciers flow together as a valley glacier until their terminus at around 5,500 ft (1,700 m). Meltwater from the glacier drains into the Cowlitz River.