- COORDINATES: 40.899642, -77.166383
- COUNTY: Union
- DISTANCE TO NEXT: Mifflinburg - 6
- EXPLANATION OF NAME: Named for Colonel Hartley Who Owned the Land At Time Town Was Laid Out
- FOUNDED: 1793
- MANUFACTURER: Not noted on marker
- STATUS: Dec. 2010 photo by Clair Clawser shows sign really in need of care. Repainted, straightened and turned around to proper position August 2011 by Jim Carn.
Photo Dec. 2010 by Clair Clawser
Photo August 2011 by Jim Carn
Photo August 2011 by Jim Carn
Photo August 2011 by Jim Carn
Photo August 2011 by Jim Carn
March 2018 photo by J. Graham
September 2018 photo by Mike Wintermantel
PA 45 at west end of town
