- COORDINATES: 39.781182, -77.733582
- COUNTY: Franklin
- DISTANCE TO NEXT: Chambersburg - 11
- EXPLANATION OF NAME: Named for Greencastle In North of Ireland
- MANUFACTURER: Carlisle Foundry Company
- FOUNDED: 1750
- SHAPE: Standard 1-sided
- STATUS: This town, at the intersection of a U.S. numbered route and a PA numbered route, still has all four of these original markers. Few towns have more than one remaining.
![Photo Sept 2011 by JGraham](http://keystonemarkertrust.org/wp-content/uploads/town_greencastle_chambersburg_0911jgraham-200x300.jpg)
Photo Sept 2011 by JGraham
![January 2016 photo by Mike Wintermantel](http://keystonemarkertrust.org/wp-content/uploads/town-greencastle-s-chambersburg-0116mwintermantel-1-285x190.jpg)
January 2016 photo by Mike Wintermantel
US 11 at South Carlisle Street at south end of town