Keystone Marker Trust

Re-Inventing the Perfectly Pennsylvania Keystone Marker

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town-churchtown-mechanicsburg-rcheagey

Published August 17, 2026 at 1056 × 812 in Churchtown (Mechanicsburg – 14)
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From R.C. Heagey photo collection.

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The Keystone Marker Trust is dedicated to the preservation, restoration, and re-creation of Pennsylvania’s iconic Keystone Marker signs. These signs were produced in the 1920s by the Pennsylvania Department of Highways. Thousands were placed all across the state for many purposes, and several hundred remain today, most of them explaining the origins of town names.

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