Thickness of bituminous-coal and lignite seams at all mines and thickness of overburden at strip mines in the United States in 1955

Author:	Young, W. H.
Additional Authors:	Anderson, R. L.
Year:	1957
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7812
Series:	Information circular / United States. Bureau of Mines ;
Report Number:	7812
Subjects:	Mines and mineral resources--United States
	Bituminous coal--United States
	Lignite--United States
	Strip mining--United States
Link:	https://hdl.handle.net/2027/mdp.39015078459834