Cathrall, J. B., McDanal, S. K., VanTrump, G., Arbogast, B. F., and Grybeck, D. J., 1993, Geochemical maps showing the distribution and concentration of selected elements in nonmagmatic heavy-mineral concentrate samples from stream sediment from the Craig, Dixon Entrance, and western edges of the Ketchikan and Prince Rupert quadrangles, Southeast Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF 2217-B, unpaged, 1 plate, scale 1:250,000.
Citation Updated: 2009-06-30 23:16:25