Coats, R.R., 1956, Geology of northern Adak Island, Alaska: U.S. Geological Survey Bulletin 1028-C, p. 45-67, 1 sheet, scale 1:50,000.
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Maps & Other Oversized SheetsBedrock; Bedrock Geology; Generalized; Geology; Surficial; Volcanic; Volcanic Ash; Volcanoes; Volcanology