Riehle, J. R., Detterman, R. L., Yount, M. E., and Miller, J. W., 1987, Preliminary geologic map of the Mt. Katmai quadrangle and portions of the Afognak and Naknek quadrangles, Alaska: U.S. Geological Survey Open-File Report 87-0593, unpaged, 1 sheet, scale 1:250,000.
Citation Updated: 2005-06-10 00:04:11