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Keystone Markers

Not to be confused with Pennsylvania route markers.
Keystone Marker for Spring Run, Pennsylvania, which includes all the standard elements of the markers: 1) a light blue and yellow color scheme, 2) distance to the next town, 3) town name and origin of the name, 4) founding date, and 5) a distinctive shape, cast in iron and mounted on a distinctive pole.
Keystone marker for Benton, Columbia County, Pennsylvania. Many of the markers are currently damaged or in need of maintenance.

Keystone markers are a now-defunct system of roadside signage developed by Pennsylvania Department of Highways shortly after the First World War, placed outside cities, towns, and boroughs in the state of Pennsylvania.[1] Variations of the marker could be found at highway crossings of creeks, rivers, trails, borough lines, and other points of interest.[2]

  1. ^ Graham, John (June 2010). "A Welcoming Sign" (PDF). Pennsylvania Borough News. Archived from the original (PDF) on 2014-08-26.
  2. ^ Graham, John T (2010). "History in Cast Iron" (PDF). Pennsylvania Recreation and Parks Magazine (Second Quarter 2010). Archived from the original (PDF) on 2014-08-26.

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Keystone Markers German

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