Library of Congress · 2017588230
Allegheny Portage Railroad National Historic Site, Pennsylvania
Description
Aerial view of cable-railroad route drawn to resemble a block diagram. "*GPO:2013--378-781/30004. Reprint 2004." Relief shown by shading. Title from panel. Includes text, index of cable inclines, view of summit sheds, and color illustrations. Text, small map of site, and color illustrations on verso. Available also through the Library of Congress Web site as a raster image.
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townsend, l. kenneth, united states. national park service. 2004. Allegheny Portage Railroad National Historic Site, Pennsylvania. https://www.loc.gov/item/2017588230/
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