Schaefer, J.R., Cameron, C.E., and Nye, C.J., 2011, Historically active volcanoes of Alaska: Alaska Division of Geological and Geophysical Surveys Miscellaneous Publication 133 v 1,1, 1 sheet, scale 1:3,000,000, available at http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=20181 .
PDF files on DGGS's web site