Crater Lake National Park is in the Cascade Mountains of southern Oregon. It’s known for its namesake Crater Lake, formed by the now-collapsed volcano, Mount Mazama. Wizard Island is a cinder cone near the western edge of the lake. The Rim Drive, a road surrounding the lake, offers views of the park’s volcanic formations. The park’s numerous trails include Sun Notch, with views of the Phantom Ship, a small island.
Max depth: 1,949 feet (deepest lake in the US)