Reference | {Deposit:: MAYFIELD, C.F., AND GRYBECK, DONALD, 1978, MINERAL OCCURRENCES AND RESOURCES MAP OF THE AMBLER RIVER QUADRANGLE, ALASKA: U.S. GEOLOGICAL SURVEY OPEN-FILE MAP 78-120 I, 1 SHEET, SCALE 1:250,000}{Other Database:: BAG-OFR-78-120I-60} |