Add to ORKGReport issued by the Bureau of Mines over investigations of coking-coal reserves of Washington County, Pennsylvania. Methods used, and measurements of coal reserves are listed. This report includes tables, and maps
Report issued by the Bureau of Mines over studies on the reserves of coking coal from Allegheny Coun...
Report issued by the U.S. Bureau of Mines on the estimate of the known reserves of coking coal in We...
Report issued by the Bureau of Mines over studies of the estimation of coking coal reserves from Let...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Greene County, P...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Clarion County, ...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Logan County, We...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Ohio County, Wes...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Marshall County,...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Mingo County, We...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Marion County, W...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Monongalia Count...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Perry County, Ke...
Report of investigations issued by the U.S. Bureau of Mines evaluating the known reserves of coking ...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Grundy County, T...
Report issued by the U.S. Bureau of Mines on the estimates of known reserves of coking coal deposits...
Report issued by the Bureau of Mines over studies on the reserves of coking coal from Allegheny Coun...
Report issued by the U.S. Bureau of Mines on the estimate of the known reserves of coking coal in We...
Report issued by the Bureau of Mines over studies of the estimation of coking coal reserves from Let...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Greene County, P...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Clarion County, ...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Logan County, We...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Ohio County, Wes...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Marshall County,...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Mingo County, We...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Marion County, W...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Monongalia Count...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Perry County, Ke...
Report of investigations issued by the U.S. Bureau of Mines evaluating the known reserves of coking ...
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Grundy County, T...
Report issued by the U.S. Bureau of Mines on the estimates of known reserves of coking coal deposits...
Report issued by the Bureau of Mines over studies on the reserves of coking coal from Allegheny Coun...
Report issued by the U.S. Bureau of Mines on the estimate of the known reserves of coking coal in We...
Report issued by the Bureau of Mines over studies of the estimation of coking coal reserves from Let...