Kukak is a stratovolcano that often steams from fumaroles but has no known eruptions in the last 10,000. Steam can be seen at the summit of the volcano in this photo. Kukak, and its neighbors Denison and Steller, may all be one large volcano or may be three separate volcanoes. Most of the rocks are buried under glaciers. Photo by Jay Robinson, National Park Service.
Sources of Information:
Keller, A.S., and Reiser, H.N., 1959, Geology of the Mount Katmai area, Alaska: U.S. Geological Bulletin 1058-G, p. 261-298.
Kienle, J., Swanson, S.E., and Pulpan, H., 1983, Magmatism and subduction in the eastern Aleutian arc: in Shimozuru, D., and Yokoyama, I., (eds.), Arc Volcanism: Physics and Tectonics, D. Reidel, Boston, p. 191-224.
Simkin, T., and Siebert, L., 1994, Volcanoes of the World: Geoscience Press, Tucson, Arizona, 349 p.
Wood, C.A., and Kienle, J., 1993, Volcanoes of North America: Cambridge University Press, New York, 354 p.