Mazama has a few composite cones in the vicinity of the caldera. At about 420,000 years old, Mount Scott has a conical shape, but has been extensively altered by Pleistocene glacial erosion, which carved a large cirque on its western flank and smaller ones on its eastern and northeastern sides. Scott lacks a summit crater. Hillman Peak was the youngest composite cone in the Mazama eruptive center, forming about 70,000 years ago. It lies on the southwestern side of the caldera, and it represents the highest point on the Mazama rim, rising above Crater Lake. The cone was cut down the middle during Mazama's collapse post-eruption, creating a cross-section of its interior composition.