Waythomas, C.F., 1995, Surficial geologic map of northern Adak Island, Alaska: U.S. Geological Survey Open-File Report 95-128, 6 p., 1 sheet, scale 1 inch = 1000 meters.
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Maps & Other Oversized SheetsGeologic Map; Geology; Surficial; Surficial Geologic Map; Surficial Geology