1 - 25 of 2
| Title | Date | Type | ||
|---|---|---|---|---|
| 1 |
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Cost of initial mining excavations | 1916 | Text |
| 2 |
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Mining and milling of complex lead and zinc ores in the Park City district, Utah | 1916 | Text |
1 - 25 of 2
| Title | Date | Type | ||
|---|---|---|---|---|
| 1 |
|
Cost of initial mining excavations | 1916 | Text |
| 2 |
|
Mining and milling of complex lead and zinc ores in the Park City district, Utah | 1916 | Text |