Methods and costs of deepening the Crescent shaft, Bunker Hill & Sullivan Mining and Concentrating Company, Kellogg, Shoshone County, Idaho

Author:	Olds, E. B.
Additional Authors:	Parsons, Edward W.
Year:	1957
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7783
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	7783
Subjects:	Shaft sinking
	Shaft sinking--Costs
	Prospecting--Idaho--Shoshone County--Costs
	Lead mines and mining--Idaho--Shoshone County
Link:	https://hdl.handle.net/2027/mdp.39015078460311