Sinking methods and costs for a small vertical shaft with steel supports Keystone mine, Crested Butte, Colorado /
| Main Author: | Bolmer, R. L. |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
[Washington, D.C.] :
U.S. Dept. of the Interior, Bureau of Mines,
1962.
|
| Physical Description: |
ii, 25 pages : illustrations, maps ; 26 cm. |
| Series: |
Information circular (United States. Bureau of Mines) ;
8086. |
| Subjects: |
CMU Storage Gov Pub
| Location | Call Number: | Status |
|---|---|---|
| CMU Storage Gov Pub | I 28.27:8086 | Available |
| CMU Storage Gov Pub | I 28.27:8086 | Available |