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5185298 
Technical Report 
Allegheny Portage Railroad national historic site natural resource condition assessment 
Yetter, S; Bishop, J; Hurteau, S; Chamberlain, S; Nassry, M 
2013 
National Park Service 
Washington, DC 
PB2014102243 
English 
Natural resource rept.
Prepared in cooperation with Pennsylvania State Univ., University Park.
Allegheny Portage Railroad National Historic Site (ALPO) is in southwestern Pennsylvania in Blair and Cambria counties. The park protects the cultural resources that comprise the Allegheny Portage Railroad and tells the story of its influence on the nation.