| Reference | {Deposit:: Buddington, A. F., 1923, Mineral deposits of the Wrangell district; U. S. Geological Survey Bulletin 739, p. 51-75.}{Deposit:: Cobb, E. H., 1972, Summary of mineral occurrences (other than mineral fuels and construction materials) in the Petersburg Quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-870, 53 p.}{Deposit:: Grybeck, D. J., Berg, H. C., and Karl, S. M., 1984, Map and description of the mineral deposits in the Petersburg and eastern Port Alexander quadrangles: U.S. Geological Survey Open-File Report 84-837, 86 p., 1 sheet, scale 1:250,000.}{Deposit:: Philpotts, John, and Evans, J. R., 1992, Rare earth minerals in*hunder egg*from Zarembo Island, southeast Alaska: in U.S. Geological Survey Bulletin 2041, p. 98-105.} |