Wizard Island

Following the collapse of Mount Mazama, lava poured into the caldera even as the lake began to rise. Today, a small volcanic island, Wizard Island, appears on the west side of the lake. This cinder cone rises 760 feet above the lake and is surrounded by black volcanic lava blocks. A small crater, 300 feet across and 90 feet deep, rests on the summit. The crater is filled by snow during the winter months, but remains dry during the summer.