List_of_tunnels_documented_by_the_Historic_American_Engineering_Record_in_Pennsylvania

List of tunnels documented by the Historic American Engineering Record in Pennsylvania

List of tunnels documented by the Historic American Engineering Record in Pennsylvania

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This is a list of tunnels documented by the Historic American Engineering Record in the U.S. state of Pennsylvania.[1]

Tunnels

More information Survey No., Name (as assigned by HAER) ...

See also

References

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  1. [1]
    Library of Congress. "Prints and Photographs Online Catalog: Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey". Library of Congress. Retrieved January 7, 2014.
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