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USA | |
| Morrison, Greg (1980) Tungsten Occurrences and Potential in the Darwin Hill, Inyo County, California, University of Western Ontario, February, 1980 |
| Knopf, Adolf (1914a), The Darwin silver-lead mining district, California: USGS Bulletin 580: 1-18. |
- Darwin Mine (Anaconda; Bernon Mine; Defiance Mine; Essex Mine; Independence Mine; Intermediate Mine; Rip Van Winkle Mine; Thompson Mine)
| Knopf, Adolf (1914a), The Darwin silver-lead mining district, California: USGS Bulletin 580: 1-18 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Foord, E. E., & Shawe, D. R. (1989). The Pb-Bi-Ag-Cu-(Hg) Chemistry Of Galena And Some Associated Sulfosalts: A Review and Some New Data From Colorado, California And Pennsylvania. Canadian Mineralogist, 27, 363-382. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Morrison, Greg (1980) Tungsten Occurrences and Potential in the Darwin Hill, Inyo County, California, University of Western Ontario, February, 1980. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Tucker, W. Burling, Reid J. Sampson (1938) Mineral resources of Inyo County, California. California Journal of Mines and Geology, 34 (4) 368-500 |
| Hall, Wayne Everett & E.M. Mackevett (1958), Economic geology of the Darwin quadrangle, Inyo County, California: Calif Division of Mines Special Report 51. |
| California Journal of Mines and Geology (1938) Vol. 34, No. 1 |