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

Cameron, C.E., Schaefer, J.R., and Mulliken, K.M., 2018, Historically active volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 133 v. 3, 2 sheets. Http://doi.org/10.14509/30142
download from DGGS website

Schaefer, J.R., Cameron, C.E., and Nye, C.J., 2014, Historically active volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 133 v. 1.2, 1 sheet, scale 1:3,000,000. This publication has been superseded. Newest version available at http://www.dggs.alaska.gov/pubs/id/20181 .
PDF files on DGGS's web site

Hildreth, Wes, and Fierstein, Judy, 2003, Geologic map of the Katmai volcanic cluster, Katmai National Park, Alaska: U.S. Geological Survey Miscellaneous Investigation Series Map I 2778, unpaged, 1 sheet, scale 1:63,360.
website
full-text PDF : 23.9 MB

Schaefer, Janet, and Nye, C. J., 2002, Historically active volcanoes of the Aleutian Arc: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication MP 0123, unpaged, 1 sheet, scale 1:3,000,000. Superceded by Miscellaneous Publication 133: http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=20181
link to PDF files on DGGS website of MP133, which updates MP123

Fierstein, Judy, and Hildreth, Wes, 2001, Preliminary volcano-hazard assessment for the Katmai volcanic cluster, Alaska: U.S. Geological Survey Open-File Report 00-0489, 50 p., 1 plate, scale not applicable.
full-text PDF : 28.8 MB

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

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.

Nye, C. J., 1994, Aleutian arc volcanoes: Alaska Division of Geological & Geophysical Surveys Public-Data File PDF 94-54, unpaged, 1 sheet, scale 1:2,126,841.

March, G. D., 1993, Holocene volcanoes of the Aleutian Arc, Alaska: Alaska Division of Geological & Geophysical Surveys Public-Data File PDF 93-85, unpaged, 1 sheet, scale 1:2,000,000.

Riehle, J. R., and Detterman, R. L., 1993, Quaternary geologic map of the Mount Katmai quadrangle and adjacent parts of the Naknek and Afognak quadrangles, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I 2032, unpaged, 1 sheet, scale 1:250,000.

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 files

Shew, Nora, and Lanphere, M. A., 1992, Map showing potassium-argon ages from the Mount Katmai and adjacent parts of the Naknek and Afognak quadrangles, Alaska Peninsula, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF 2021-E, unpaged, 1sheet, scale 1:250,000.

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.

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

Wilcox, R. E., 1959, Some effects of recent volcanic ash falls with special reference to Alaska: in Investigations of Alaskan volcanoes, U.S. Geological Survey Bulletin 1028-N, p. 409-476, 5 sheets, scale unknown.
full-text PDF : 1.5 MB
plate 54 PDF : 76 KB
plate 55 PDF : 194 KB
plate 56 PDF : 234 KB
plate 57 PDF : 177 KB
plate 58 PDF : 140 KB

Snyder, G. L., 1954, Eruption of Trident Volcano, Katmai National Monument, Alaska, Feb.-June 1953: U.S. Geological Survey Circular C 0318, 7 p., 2 sheets, scale unknown.
link to DGGS website containing PDF

Coats, R. R., 1950, Volcanic activity in the Aleutian Arc: U.S. Geological Survey Bulletin 0974-B, p. 35-49, 1 sheet, scale 1:5,000,000.
plate 1 PDF : 819 KB
full-text PDF : 783 KB

Smith, W. R., and Baker, A. A., 1924, The Cold Bay-Chignik District, Alaska: U.S. Geological Survey Bulletin 0755-D, p. 151-222, 5 plates, scale 4 at 1:250,000 and 1 unknown.
full-text PDF : 4.9 MB
plate 8 PDF : 1.6 MB