Moving longwall shield supports at the York Canyon mine, Raton, N. Mex.

Author:	Oitto, Richard H.
Additional Authors:	Wisecarver, David W.,, Sikes, William E,
Year:	1977
Document Type:	USBI
Issuing Agency:	Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:8747
Series:	Information circular - Bureau of Mines ;
Report Number:	8747
Subjects:	Coal mines and mining--New Mexico--Raton
	Mine timbering
	Mining engineering
Link:	https://hdl.handle.net/2027/mdp.39015078453704