Raising with a suspended work cage at the Irene Shaft, Leadville, Colo.

Author:	Bolmer, R. L.
Additional Authors:	Greenlee, B. B.
Year:	1958
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7868
Series:	Information circular / United States. Bureau of mines ;
Report Number:	7868
Subjects:	Mining engineering
	Mine hoisting
Link:	https://hdl.handle.net/2027/mdp.39015078455212