Hildreth, Wes, Fierstein, Judy, Lanphere, M. A., and Siems, D. F., 2003, Trident Volcano: four contiguous stratocones adjacent to Katmai Pass, Alaska Peninsula: in Galloway, J. P., (ed.), Studies by the U.S. Geological Survey in Alaska, 2001, U.S. Geological Survey Professional Paper PP 1678, p. 153-180.
Citation Updated: 2010-04-23 23:13:53