Staple Bend Tunnel
Subtitle: Allegheny Portage Railroad National Historic Site, Pennsylvania
By: prepared by Sellardse Grigg, Inc.
Contributors: Sellards & Grigg, Inc.; United States. Dept. of the Interior. National Park Service.
Publisher: U.S. Dept. of the Interior, National Park Service
Published: 1991
Place of publication: [Washington, D.C.?]
Language: eng
Subjects: Railroad tunnels -- Pennsylvania -- Design and construction -- History.; Staple Bend Tunnel (Pa.) -- History.
Other titles: Allegheny Portage Railroad National Historic Site, Pennsylvania.; Historic structure report: Staple Bend Tunnel ....
Notes: Includes bibliographical references.
Item 624-E-1
Cover title: Historic structure report: Staple Bend Tunnel, Allegheny Portage Railroad National Historic Site, Pennsylvania.
"Historic structure report, architectural data section."
Shipping list no.: 91-705-P.