Search U.S. government technical reports digitized or harvested by TRAIL.
Flotation of Marquette Range nonmagnetic taconite using innovative procedures
Superconcentration of commercial magnetic taconite concentrates by cationic flotation
Literature on the revegetation of coal-mined lands
Fugitive dust control for haulage roads and tailing basins
Electromagnetic investigation of abandoned mines in the Galena, KS, area
Soil characterization and soil amendment use on coal surface mine lands :an annotated bibliography