Diamond drilling blast holes, Balmat Mine, St. Lawrence County, N.Y.

Author:	Mosier, McHenry.
Year:	1947
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7408
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	7408
Subjects:	Blasting
	Rock-drills
	Boring machinery
	Zinc mines and mining--New York (State)--Saint Lawrence County--Equipment and supplies
Link:	https://hdl.handle.net/2027/mdp.39015077577529