Wad from selected localities.
USA | |
| Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 |
Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 | |
Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 | |
Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 |