Gilbert geologic, topographic, and location maps, as well as references that are classified as maps or that contain maps.

Historically active volcanoes of Alaska, 2011
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

Volcanoes of Alaska, 1998
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 MrSID format

Volcanoes of Alaska, 1995
Alaska Division of Geological & Geophysical Surveys, 1995, Volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Information Circular IC 0038, unpaged, 1 sheet, scale 1:4,000,000.

Geothermal resources of the Aleutian Arc, 1993
Motyka, R. J., Liss, S. A., Nye, C. J., and Moorman, M. A., 1993, Geothermal resources of the Aleutian Arc: Alaska Division of Geological & Geophysical Surveys Professional Report PR 0114, 17 p., 4 sheets, scale 1:1,000,000.
website with links to PDF and MrSID files

Map showing distribution, composition, and age of Late Cenozoic volcanic centers in Alaska, 1986
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

Sulphur on Unalaska and Akun islands and near Stepovak Bay, Alaska, 1919
Maddren, A. G., 1919, Sulphur on Unalaska and Akun islands and near Stepovak Bay, Alaska: U.S. Geological Survey Bulletin B 0692-E, p. 283-298, 1 plate, scale unknown.
full-text PDF : 479 KB