Author: | Breckon, L. S.. |
---|---|
Year: | 1940 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27:7128 |
Series: | Information circular / United States. Department of the Interior, Bureau of Mines ; |
Report Number: | 7128 |
Subjects: | Tunneling |
Tunnels--Utah--Copperfield | |
Tunnels--Utah--Bingham | |
Link: | https://hdl.handle.net/2027/mdp.39015095086388 |