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Nye, C. J., Queen, Katherine, and McCarthy, A. M., 1998, Volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Information Circular IC 0038, unpaged, 1 sheet, scale 1:4,000,000, available at http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=7043 . website with links to sheets in PDF format
Richter, D. H., Moll-Stalcup, E. J., Duffield, W. A., and Shew, Nora, 1997, Geologic map of the Nabesna A-6 Quadrangle, Alaska: U.S. Geological Survey Open-File Report 97-0475, 22 p., 1 sheet, scale 1:63,360.
Luedke, R. G., and Smith, R. L., 1986, Map showing distribution, composition, and age of Late Cenozoic volcanic centers in Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I 1091-F, unpaged, 3 sheets, scale 1:1,000,000. ADGGS website with links to map PDFs
Richter, D. H., 1976, Geologic map of the Nabesna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I 0932, unpaged, 1 plate, scale 1:250,000.
Mendenhall, W. C., 1905, Geology of the central Copper River region, Alaska: U.S. Geological Survey Professional Paper PP 0041, 133 p., 1 plate, scale 1:63,360. full-text PDF : 33 MB plate 4 PDF : 28.5 MB plate 11 PDF : 16 MB plate 19 PDF : 17.4 MB plate 20 PDF : 2.4 MB