Cameron, C.E., and Snedigar, S.F., 2016, Alaska Volcano Observatory image database: Alaska Division of Geological & Geophysical Surveys Digital Data Series 13, https://www.avo.alaska.edu/images/. https://doi.org/10.14509/29689.
publication page at DGGS
AVO image databaseCameron, C. E., Triplehorn, J. H., and Robar, C. L., 2003, Bibliography of information on Alaska volcanoes: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication MP 131, 1 CD-ROM.

Stasiuk, M.V., Hickson, C.J., and Mulder, Taimi, 2003, The vulnerability of Canada to volcanic hazards: Natural Hazards, v. 28, p. 563-589.
Hauksdottir, S., Enegren, E.G., Russell, J.K., 1994, Recent basaltic volcanism in the Iskut-Unuk rivers area, northwestern British Columbia: Geological Survey of Canada Current Research no 1994-A, p. 57-67.
Wood, C. A., and Kienle, Juergen, (eds.), 1990, Volcanoes of North America: United States and Canada: New York, Cambridge University Press, 354 p.
Stasiuk, M.V., and Russell, J.K., 1990, Quaternary volcanic rocks of the Iskut River region, northwestern British Columbia: Geological Survey of Canada Current Research Part E, Cordillera and Pacific Margin, no 90-1E, p. 153-157.
Green, Lewis, 1982, The boundary hunters: surveying the 141st Meridian and the Alaska Panhandle: Vancouver, B.C., University of British Columbia Press, 214 p.
Elliott, R. L., Koch, R. D., and Robinson, S. W., 1981, Age of basalt flows in the Blue River valley, Bradfield Canal Quadrangle: in Albert, N. R. and Hudson, Travis, (eds.), The United States Geological Survey in Alaska: accomplishments during 1979, U.S. Geological Survey Circular C 0823-B, p. 115-116.

Mertie, J. B. Jr., 1921, Notes on the Salmon-Unuk River region: U.S. Geological Survey Bulletin 0714-B, p. 129-142, 1 plate, scale unknown.
full-text PDF : 754 KB

National Geographic Society, 1906, Evidence of recent volcanic action in southeast Alaska: National Geographic Magazine, v. 17, p. 173, 176.