Search
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
5 results returnedSearch results
- Some notes on underground transportation in metal mines
- Shaft-sinking methods and costs, and cost of plant and equipment at the Macassa Mine, Kirkland Lake, Ontario
- Some notes on methods and costs of equipping and developing prospects
- Method and cost of exploring, equipping for development, and developing the Central Patricia Group of Claims, Northern Ontario
- Shaft sinking with a shot drill, Idaho Maryland Mine, Grass Valley, Calif.
