| Reference | {Deposit:: Cobb, E.H., and Mayfield, C.F., 1981, Summaries of data on lists of references to metallic and selected nonemetallic mineral occurrencs in the Ambler River quadrangle, Alaska: U.S. Geological Survey Open-File Report 81-570-A, 13p.}{Deposit:: Mayfield, C.F. and Grybeck, D., 1978, Mineral occurrences and resource map of the Ambler river quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-120I, 1 sheet, scale 1:250,000.} |