| Lat / long: | 31.3707, -110.69623 |
| Primary: | Silver, Copper, Zinc, Lead |
| Secondary: | Gold, Semiprecious Gemstone, Quartz |
| Ore: | Chalcopyrite, Galena, Molybdenite, Powellite, Pyrite, Quartz, Scheelite, Sphalerite |
| Gangue: | Chlorite, Grossularite, Pyroxene, Talc, Tremolite |
| Orebody form: | IRREGULAR, TABULAR |
| Discovery year: | 1880 |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| Host rock: | Naco Group;Cherty Marble Member Of Epitaph Dolomite |
| Host type: | Limestone |
| Associated type: | Diorite |
| Structure: | Mineral Deposits Of Washington Duquesne Area Occupy A Limestone-Sed Iment Belt (2.5 Mi By 1.25 Mi) Surrounded By Igneous Rocks Which Also Form Detached Masses And Dikes Within Belt, Post Ore Faulting Cuts Off Sulfides. Coarse Sheeting Or Jointing D Ips 25e |
| Tectonic: | Washington Camp Fault Zone |
| MRDS | M030397 |
| DEP | 10037099 |
| Reference | {Deposit:: KEITH, 1975, ABM FILE DATA.}{Deposit:: LEHMAN, 1978, PH. D. THESIS, UNIV OF AZ.}{Deposit:: SCHRADER, 1915, USGS BULL 582.}{Deposit:: ABGMT FILE DATA, STANTON B. KEITH.}{Deposit:: ABGMT-USBM FILE DATA.}{Deposit:: USBM FILES, HOLLAND MINE.}{Deposit:: ADMR FILE DATA, HOLLAND MINE.}{Deposit:: ABGMT CLIPPINGS FILES, HOLLAND MINE, DUQUESNE MINING AND REDUCTION CO.}{Deposit:: BLM DISTRICT MINING SHEET 727.}{Deposit:: TENNEY, 1927-29, HISTORY OF MINING IN AZ, ABM, P. 293-300.}{Deposit:: BLAIR, GERRY, 1992, THE ROCKHOUN* GUIDE TO ARIZONA: HELENA, MONTANA, FALCON PRESS, 165 P.}{Other Database:: CIMRI}{Production:: KEITH, 1975; LEHMAN, 1978} |
| Reporter | Peterson, Jocelyn A., Calder, Susan R., Orris, Greta J. |