This sandstone wall is part of the Allegheny Portage Railroad National Historic Site visitor center. The blocks have different shapes, and sizes. There are different colors of sandstone. The site is listed on the National Register of Historic Places.Galleries:Allegheny Portage Railroad, Stone WallsKeywords:allegheny portage railroad, different colors of sandstone, gallitzin, mortared joints, pattern one, pennsylvania, sandstone wallPhoto Location: Allegheny Portage Railroad National Historic Site, PennsylvaniaPhotographer: Dr. Roy WinkelmanDate of Photo: 11/25/2011Device Make: CanonDevice Model: Canon EOS 5D Mark IIOriginal Dimensions: 5616×3744Picture Orientation: LandscapeGPS Coordinates: 40°27'26.33"N 78°32'57.61"WPicture Number: 15825
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