Bonanza Opal Mine

USBM WFOC WILDERNESS STUDY OF CHARLES SHELDON ANTELOPE RANGESTATE INSPECTOR OF MINES, DIRECTORY OF NEVADA MINE OPERA-TIONS ACTIVE DURING 1977. NEVADA INDUSTRIAL COMMISSION,JUNE 30, 1978, P. 23.USGS OFR 78-1002, 'MINERAL RESOURCES OF THE CHARLES SHELDONWILDERNESS STUDY AREA, HUMBOLDT AND WASHOE COS., NEVDAD ANDHARNEY COS., OREGON, 'E.T. TUCHEK, 1978 (UNPUB)WFOC MPF NO. 0320130336DIRECTORY OF NEVADA MINE OPERATIONS ACTIVE DURING CALENDARYEAR 1994, STATE OF NEVADA DEPARTMENT OF BUSINESS ANDINDUSTRY, DIVISION OF INDUSTRIAL RELATIONS, CARSON CITY,NV, APRIL 1995, P. 49.U.S. BUREAU OF MINES, 1994, DIRECTORY OF PRINCIPAL U.S.GEMSTONE PRODUCERS IN 1993; U.S. BUREAU OF MINES MINERALINDUSTRY SURVEYS, P. 39.