Microfilming maps of abandoned anthracite mines :mines in the Western middle anthracite field

Author:	Gait, G. B.
Year:	1971
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:8519
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	8519
Subjects:	Coal mines and mining--Pennsylvania
	Mine maps
Link:	https://hdl.handle.net/2027/mdp.39015078514885