Spatial Coverage
- Dolores County (Colo.)1
- Esmeralda County1
- Goldfield Mining District (Nev.)1
- Goodsprings (Nev.)1
- Goodsprings.1
- Grass Valley Mining District (Calif.)1
- Grass Valley Region1
- Grass Valley Region (Calif.)1
- Idaho1
- Jasper County (Mo.)1
- Kansas1
- Leadville1
- Logan (Utah)1
- Madison County (Mont.)1
- Madison County.1
- Manti (Utah)1
- Missouri1
- Nephi (Utah)1
- Nevada City Mining District (Calif.)1
- Nevada City Region1
