Browse TRAIL Inventories

Use of scrapers and other light earth-moving equipment in bituminous-coal strip mining

Experiment in Underground Gasification of Coal, Gorgas, Alabama

Minable Reserves, Petrography, Chemical Characteristics, and Washability Tests of Coal Occurring in the Coos Bay Coal Field, Coos County, Oregon

Reserves, Petrographic and Chemical Characteristics, and Carbonizing, Properties of Coal Occurring South of Dry Fork of Minnesota Creek, Gunnison County, Near Paonia, Colorado, and the Geology of the Area

Estimate of Known Recoverable Reserves of Coking Coal in Indiana County, Pennsylvania

Estimate of Known Recoverable Reserves of Coking Coal in Cambria County, Pennsylvania

Estimate of Known Recoverable Reserves of Coking Coal in Westmoreland County, Pennsylvania

Estimate of Known Recoverable Reserves of Coking Coal in Armstrong County, Pennsylvania.

Estimate of Known Recoverable Reserves of Coking Coal in Pike County, Kentucky

Estimate of Known Recoverable Reserves of Coking Coal in Fayette County, Pennsylvania

Estimate of Known Recoverable Reserves of Coking Coal in Floyd County, Kentucky

Modified longwall mining with a German coal planer (plow) in the Pocohontas No. 4 coal bed, Helen, W. Va.

Estimate of Known Recoverable Reserves of Coking Coal in Raleigh County, West Virginia

Estimate of Known Recoverable Reserves of Coking Coal in Jefferson County, Pennsylvania

Estimate of Known Recoverable Reserves of Coking Coal in Knott County, Kentucky

Estimate of Known Recoverable Reserves of Coking Coal in McDowell County, West Virginia

Estimate of Known Recoverable Reserves of Coking Coal in Allegheny County, Pennsylvania

Estimate of Known Recoverable Reserves of Coking Coal in Letcher County, Kentucky

Estimate of Known Recoverable Reserves of Coking Coal in Wyoming County, West Virginia

Estimate of Known Recoverable Reserves of Coking Coal in Allegany County, Maryland

Estimate of Known Recoverable Reserves of Coking Coal in Allegany County, Maryland

Estimate of Known Recoverable Reserves of Coking Coal in Somerset County, Pennsylvania

Mining with a Dosco continuous miner on a longwall face

Estimate of Known Recoverable Reserves of Coking Coal in Mingo County, West Virginia

Estimate of Known Recoverable Reserves of Coking Coal in Perry County, Kentucky

Estimate of Known Recoverable Reserves of Coking Coal in Harlan County, Kentucky

Estimate of Known Recoverable Reserves of Coking Coal in Mercer County, West Virginia

Estimate of Known Recoverable Reserves of Coking Coal in Washington County, Pennsylvania

Estimate of Known Recoverable Reserves of Coking Coal in Brooke County, West Virginia

Estimate of Known Recoverable Reserves of Coking Coal in Ohio County, West Virginia

Estimate of Known Recoverable Reserves of Coking Coal in Greene County, Pennsylvania

Estimate of Known Recoverable Reserves of Coking Coal in Monongalia County, West Virginia

Estimate of Known Recoverable Reserves of Coking Coal in Logan County, West Virginia

Estimate of Known Recoverable Reserves of Coking Coal in Marion County, West Virginia

Estimate of Known Recoverable Reserves of Coking Coal in Marshall County, West Virginia

Estimate of Known Recoverable Reserves of Coking Coal in Clarion County, Pennsylvania

Modified longwall mining with German coal planers :summary of operations at five coal mines

The use of augers in surface mining of bituminous coal


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