Search U.S. government technical reports digitized or harvested by TRAIL.
Review of Bureau of Mines coal program,1969
Coal mine dust standards of the United States and other countries
Methods and costs of coal refuse disposal and reclamation
Mechanical properties and cutting characteristics of coal
Injury experience in coal mining, 1970
Technique to improve fuel extraction for coal seams intersected by oil and gas wells
Coal mine combustion products:neoprenes, polyvinyl chloride compositions, urethane foam, and wood
Chemical analysis of slickensides from coal mine roof shale
Structural analysis of a coal mine opening in elastic, multilayered material
Coal mine combustion products: identification and analysis
Geologic investigations of underground coal mining problems
Use of surface joint and photolinear data for predicting subsurface coal cleat orientation
Determining cleat orientation of deeper coalbeds from overlying coals
Estimating methane content of bituminous coalbeds from adsorption data
Results of research to develop guidelines for mining near surface and underground bodies of water
Dry-process-sprayed coal mine sealants,a progress report
Dry-process-sprayed coal mine sealants,an updated progress report
Improved methods for monitoring production from vertical degasification wells
Abandoned coal-mined lands :nature, extent and cost of reclamation