Geologic map of Katmai Caldera region.
This image is found in Miller, T. P., McGimsey, R. G., Richter, D. H., Riehle, J. R., Nye, C. J., Yount, M. E., and Dumoulin, J. A., 1998, Catalog of the historically active volcanoes of Alaska: U.S. Geological Survey Open-File Report OF 98-0582, 104 p.,
Please cite Miller and others (1998), and Riehle and others (1987) when using this image.
Full Resolution.