Tungsten mining and milling in Boulder County, Colo.

Author:	Belser, Carl.
Year:	1960
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7936
Series:	Information circular / United States. Bureau of Mines ;
Report Number:	7936
Subjects:	Mines and mineral resources--Colorado--Boulder County
	Mining claims--Colorado--Boulder County
Link:	https://hdl.handle.net/2027/mdp.39015078454470