Search U.S. government technical reports digitized or harvested by TRAIL.
Hauling coal safely with permissible storage-battery locomotives
Comparison of storage-battery and cable-reel gathering locomotives in a West Virginia coal mine
A survey on the hydraulic transportation of coal
Unit train transportation of coal:technology and description of nine representative operations,
Long-distance coal transport :unit trains or slurry pipelines
Coal transportation practices and equipment requirements to 1985