| Reference | {Deposit:: ADMR-PORTLAND MINE FILE.}{Deposit:: USBM FILE DATA CLUSTER NO 1439-PORTLAND MINE.}{Deposit:: USGS IC 6901, 1936, P. 48.}{Deposit:: USBM-ABGMT FILE DATA.}{Deposit:: NIEMUTH, N.J., 1987, ARIZONA MINERAL DEVELOPMENT 1984-1986: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES DIRECTORY 29, 46 P.}{Deposit:: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES, 1988, DIRECTORY OF ACTIVE MINES IN ARIZONA 1987-88: DIRECTORY, 13 P.}{Deposit:: SAWYER, M.B., GURMENDI, A.C., DALEY, M.R., AND HOWELL, S.B., 1992, PRINCIPAL DEPOSITS OF STRATEGIC AND CRITICAL MINERALS IN ARIZONA: UNITED STATES BUREAU OF MINES SPECIAL PUBLICATION, 334 P.}{Other Database:: CIMRI}{Reserve-Resource:: NIEMUTH, 1987.} |