Search U.S. government technical reports digitized or harvested by TRAIL.
Core Drilling at Shaft Sites of Proposed Mine-Water Drainage Tunnel: Anthracite Region of Pennsylvania
Flood Prevention in Anthracite Mines, Northern Field: Anthracite Region of Pennsylvania, Project Number 1 (Lackawanna)
Flood Prevention in Anthracite Mines, Northern Field: Anthracite Region of Pennsylvania, Project Number 3 (Wyoming)
Flood Prevention in Anthracite Mines, Western Middle and Southern Fields: Anthracite Region of Pennsylvania, Project Number 2
Corrosive and Erosive Effects of Acid Mine Waters on Metals and Alloys for Mine Pumping Equipment and Drainage Facilities: Anthracite Region of Pennsylvania