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USA | |
| Melchiorre, Erik B., Paul M. Orwin, Frank Reith, Maria Angelica D. Rea, Jeff Yahn, and Robert Allison. (2018) "Biological and Geochemical Development of Placer Gold Deposits at Rich Hill, Arizona, USA" Minerals 8, no. 2: 56. https://doi.org/10.3390/min8020056 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
- Apex Mining District (Kingston Mining District; Pine Mining District)
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
- Lake George (Badger Flats) Area
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
- Crestone Mining District (Baca Grant Mining District)
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
- Ophir Mining District (Iron Springs Mining District)
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |