http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Assessment 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
1 online resource (vi, 52 pages) : color illustrations, color map.
by Charles A. Cravotta, III ; in cooperation with the National Park Service.
Title from PDF title screen (viewed on Sept. 8, 2005).
Includes bibliographical references (pages 25-31).
U.S. Geological Survey open-file report ; 2005-1283