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Estimate of Known Recoverable Reserves of Coking Coal in Armstrong County, Pennsylvania.
Report issued by the U.S. Bureau of Mines on the estimates of known reserves of coking coal deposits in Armstrong County, Pennsylvania. The properties of coal and coal blends from the area are presented. The report includes tables and maps.
Date:
July 1951
Creator:
Dowd, James J.; Turnbull, Louis A.; Toenges, Albert L.; Abernethy, R. F. & Reynolds, D. A.
System:
The UNT Digital Library