02117oam 2200517 450 991070967030332120180529091553.0(CKB)5470000002471531(OCoLC)61452654(EXLCZ)99547000000247153120050908d2005 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierAssessment of characteristics and remedial alternatives for abandoned mine drainage case study at Staple Bend Tunnel Unit of Allegheny Portage Railroad National Historic Site, Cambria County, Pennsylvania, 2004 /by Charles A. Cravotta, III ; in cooperation with the National Park ServiceReston, Va. :U.S. Department of the Interior, U.S. Geological Survey,2005.1 online resource (vi, 52 pages) color illustrations, color mapOpen-file report ;2005-1283Title from PDF title screen (viewed on Sept. 8, 2005).Includes bibliographical references (pages 25-31).Assessment of characteristics and remedial alternatives for abandoned mine drainage Mine drainageEnvironmental aspectsPennsylvaniaCambria CountyReclamation of landPennsylvaniaCambria CountyMine drainageEnvironmental aspectsfastReclamation of landfastPennsylvaniaCambria CountyfastMine drainageEnvironmental aspectsReclamation of landMine drainageEnvironmental aspects.Reclamation of land.Cravotta Charles A.1389146Geological Survey (U.S.),United States.National Park Service.GISGISOCLCQOCLCFOCLCOOCLCQGPOBOOK9910709670303321Assessment of characteristics and remedial alternatives for abandoned mine drainage3542700UNINA