Geochemical maps showing the distribution and concentration of selected elements in nonmagnetic heavy-mineral-concentrate samples from stream sediment from the Craig, Dixon Entrance, and western edges of the Ketchikan and Prince Rupert quadrangles, southeast Alaska - Cathrall, J.; McDanal, S.K.; Van Trump, George; Arbogast, B. F.; Grybeck, D. (Miscellaneous Field Studies Map, 1993)