The Western Cascades is a region of the U.S. state of Oregon that contains many extinct shield volcanoes, cinder cones and lava flows.
The Western Cascades is a region of the U.S. state of Oregon. This region of the U.S. state of Oregon contains many extinct shield volcanoes. This region of the U.S. state of Oregon contains cinder cones. This region of the U.S. state of Oregon contains lava flows.