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USA | |
- Stinking Springs Mining District
| AZ Dept. Min. Resources card file AZ Dept. Min. Resources Geology file-coal-Hinkson. |
| Tenney, J.B. (1928), The Mineral Industries of Arizona, AZ Bur. Mines Bull. 125: 111. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Kunz,1892. Gems & Precious Stones of N. America, p.203. |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
- Red Gulch 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. |
| Rocks & Min.: 12: 116. |
- Ruby Mining District (Elk Mountain Mining District; Irwin Mining District)
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
| U.S. Geological Survey Photographic Library |
| |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| DIXON, R. L. , HARBOUR, G. H. (1959) Coal resources of Trinidad-Aguilar area, Las Animas and Huerfano Counties, Colorado. Bulletin Vol. 1072 (G) US Geological Survey doi:10.3133/b1072g |
| Rocks & Min.: 17:5. |
| (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. |
| (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. |
| (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. |
| Wolberg, D. L. (1994). Fossils, Rocks and Ancient Environments of the Late Cretaceous Fossil Forest Locality, San Juan Basin, New Mexico Combining Science and Education. Maps Digest Expo XVI Edition, 126. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |