| Additional Authors: | Groves, R. D., Madsen, B. W., Potter, G. M., Evans, L. G. | 
|---|---|
| Year: | 1975 | 
| Document Type: | BMRA | 
| Issuing Agency: | U.S. Bureau of Mines, | 
| SUDOC: | I 28.23:8012 | 
| Series: | Report of investigations / United States. Bureau of Mines ; | 
| Report Number: | 8012 | 
| Subjects: | Strip mining | 
| Copper ores | |
| Spoil banks | |
| Link: | https://hdl.handle.net/2027/mdp.39015078484675 |