Reference | {Deposit:: PEARRE N HEYL A PA GEOL SUR I C 14 PG 3 1959}{Deposit:: PEARRE N HEYL A USGS B 1082K PG 733 PL 41 AND PG 780 1960}{Deposit:: KNOPF E. USGS BUL. 725B PG. 98, 1921.}{Deposit:: USBM CONFIDENTIAL WAR MINERALS REPORT REGIONAL FILE NO E 124} |