Fraser, G. D., and Snyder, G. L., 1959, Geology of southern Adak Island and Kagalaska Island, Alaska: in Investigations of Alaskan volcanoes, U.S. Geological Survey Bulletin 1028-M, p. 371-408, 2 sheets, scale 1:125,000.
Citation Updated: 2005-07-28 19:35:39