Methods and costs of shaft sinking in the Coeur d'Alene District, Shoshone County, Idaho

Author:	McWilliams, John R.
Additional Authors:	Erickson, Eric G.
Year:	1960
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7961
Series:	Information circular / Bureau of Mines ;
Report Number:	7961
Subjects:	Mineral industries--Idaho--Shoshone County
	Shaft sinking
	Mine ventilation
Link:	https://hdl.handle.net/2027/mdp.39015078461061