Allegheny Portage Railroad National Historic Site : geologic resource evaluation report /

Bibliographic Details
Main Author:	Thornberry, Trista L. (Author)
Format:	Government Document eBook
Language:	English
Published:	Denver, Colorado : Washington, D.C. : Geologic Resources Division, Natural Resource Program Center ; U.S. Department of the Interior, 2008.
Series:	Natural resources report ; 2008/045.
Subjects:	Allegheny Portage Railroad National Historic Site (Pa.) > Environmental conditions. Environmental monitoring > Pennsylvania > Allegheny Portage Railroad National Historic Site. Geology > Pennsylvania > Allegheny Portage Railroad National Historic Site. Historic sites > Pennsylvania > Allegheny Portage Railroad National Historic Site.
Online Access:	https://purl.fdlp.gov/GPO/gpo79599 http://purl.fdlp.gov/GPO/gpo79599

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