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USA | |
| Stolburg, Craig S. (1984) The Mines and Minerals of Darwin, California. The Mineralogical Record, 15 (1) 5-18 Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Kelley, Vincent C. (1938) Geology and Ore Deposits of the Darwin Silver-Lead Mining District, Inyo County, California. California Journal of Mines and Geology, 34 (4) 503-562 Van Nostrand Reinholt Press: 480 |
| Barton, M. D. (2000) Overview of the lithophile-element-bearing magmatic hydrothermal system at Birch Creek. White Mountains, California: Society of Economic Geologists Guidebook Series, 32, 9-26. |
- Greenhorn District (Greenhorn Mountains District)
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Ream, Lanny R. (2004) Idaho Minerals (2nd ed.) L. R. Ream Publishing, Coeur d'Alene, ID. |
- Tem Piute Mining District
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Nikischer, T. (2017) New Discoveries at the Ward Mine. Mineral News Vol. 33, No. 9 (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
- White Pine Mining District
| (1976) Geology and Mineral Resources of White Pine County, Nevada. Bulletin 85. Nevada Bureau of Mines |
| Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology |
- Gold Hill Mining District (Clifton Mining District)
| Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey Nolan, T.B., Nolan, T.B. (1935) The Gold Hill Mining District, Utah. Professional Paper 177. US Geological Survey doi:10.3133/pp177 |
| various added photos |
Middle pit, Gold Hill Mine, Gold Hill, Gold Hill Mining District, Tooele County, Utah, USA