Williams, J.R., 1959, Geology of the western part of the Big Delta (D-6) Quadrangle, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Map 297, 1 sheet.
Maps & Other Oversized SheetsBedrock; Bedrock Geology; Engineering; Engineering Geology; Generalized; Geology; Permafrost and Periglacial; Surficial