Where is the Cascade Mountain range found?

Cascade Range, segment of the Pacific mountain system of western North America. The Cascades extend northward for more than 700 miles (1,100 km) from Lassen Peak, in northern California, U.S., through Oregon and Washington to the Fraser River in southern British Columbia, Canada. Many peaks exceed 10,000 feet, including Mount Hood (11,235 feet, highest point in Oregon) and Mount Rainier (14,410 feet, highest in Washington and in the Cascade Range). Most of the summits are extinct volcanoes, but Lassen Peak (10,457 feet) and several others have erupted in the recent past.