Description
Forms the NE wall of the Mount Cerberus caldera, in the NE par of Semisopochnoi Island, N of Fenner Lake, Semisopochnoi I., Aleutian Islands.
History
Named in 1950 by R. R. Coats, U.S. Geological Survey (USGS), for Frank Perret, U.S. vulcanologist who died in 1950.