Search U.S. government technical reports digitized or harvested by TRAIL.
Buried Valley of the Susquehanna River: Anthracite Region of Pennsylvania
Data on Pumping at the Anthracite Mines of Pennsylvania
Inundated Anthracite Reserves: Eastern Middle Field of Pennsylvania
Acid-Mine-Drainage Problems: Anthracite Region of Pennsylvania
Barrier Pillars in Lackawanna Basin, Northern Field: Anthracite Region of Pennsylvania
Barrier Pillars in the Southern Field: Anthracite Region of Pennsylvania
Barrier Pillars in the Western Middle Field: Anthracite Region of Pennsylvania
Mine Pumping Plants: Anthracite Region of Pennsylvania
Barrier Pillars in Wyoming Basin, Northern Field: Anthracite Region of Pennsylvania
Surface-Water Seepage into Anthracite Mines in the Southern Field: Anthracite Region of Pennsylvania
Flood Prevention in Anthracite Mines: Anthracite Region of Pennsylvania, Projects Numbers 4 and 5