COEUR D'ALENE MOUNTAINS

division of the Northern Rocky Mountains, in northern Idaho, U.S., extending in roughly triangular form south for about 60 miles (100 km) along the Montana border from Lake Pend Oreille to St. Joe River. The highest peaks (6,0007,000 feet [1,8002,100 m]) are in the east. Mines in this region produce most of Idaho's silver, lead, and zinc. Coeur d'Alene National Forest spreads across most of the range.