Summit Unit site concept study :
Allegheny Portage Railroad National Historic Site, Pennsylvania.

Description

Corporate Author: United States. National Park Service.
Language(s): English
Published: [Denver] : U.S. Dept. of the Interior, National Park Service, [1987]
Subjects: Historic sites > Historic sites / Pennsylvania.
Allegheny Portage Railroad National Historic Site (Pa.)
Note: "NPS D-21"--P. [3] of cover.
"December 1987"--P. [3] of cover.
Cover title: Summit Unit : Allegheny Portage Railroad National Historic Site, Pennsylvania.
Shipping list no.: 88-211-P.
Physical Description: 34 p. : maps ; 28 cm
Locate a Print Version: Find in a library