Gary, J.E., Motooka, J.M., and O'Leary, R.M., 1997, Map showing the distribution of anomalous concentrations of gold and silver in stream sediment, heavy-mineral concentrate, and aquatic moss in the Iditarod Quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map 2219-D, 1 p., 1 sheet, scale 1:250,000.