Allegheny Portage Railroad National Park Service U.S. Department of the Interior Allegheny Portage Railroad

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Date: 2010-09-29 09:32:48 Tunnel Interstate 70 Interstate 76 Gallitzin Tunnel Stumphouse Mountain Tunnel Pennsylvania Staple Bend Tunnel Allegheny Portage Railroad		Allegheny Portage Railroad National Park Service U.S. Department of the Interior Allegheny Portage Railroad Add to Reading List Source URL: www.nps.gov Download Document from Source Website File Size: 407,14 KB Share Document on Facebook

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