Chapin, Theodore, 1915, Auriferous gravels of the Nelchina-Susitna region, in U.S. Geological Survey, Mineral resources of Alaska, report on progress of investigations in 1914: U.S. Geological Survey Bulletin 622, p. 118-130, 1 sheet, scale 1:500,000.
This publication is part of a larger work. Please see B 622 for more information.
Generalized; Geology; Metals