Marker Database – By County


The following is a list of known Keystone Markers sorted by county. Some are still extant, and others are now missing and only known through photographs and memories. Most of the markers that can still be found around Pennsylvania are the town name markers, though there are other varieties. Choose a county listed below to view a list of the markers located there.

Adams County


Allegheny County


Armstrong County


Beaver County


Bedford County


Berks County


Blair County


Bradford County


Bucks County


Butler County


Cambria County


Cameron County


Carbon County


Centre County


Chester County


Clarion County


Clearfield County


Clinton County


Columbia County


Crawford County


Cumberland County


Dauphin County


Delaware County


Elk County


Erie County


Fayette County


Forest County


    Franklin County


    Fulton County


    Greene County


    Huntingdon County


    Indiana County


    Jefferson County


    Juniata County


    Lackawanna County


    Lancaster County


    Lawrence County


    Lebanon County


    Lehigh County


    Luzerne County


    Lycoming County


    McKean County


    Mercer County


    Mifflin County


      Monroe County


      Montgomery County


      Montour County


      Northampton County


      Northumberland County


      Perry County


      Philadelphia County


      Pike County


      Potter County


      Schuylkill County


      Snyder County


      Somerset County


      Sullivan County


      Susquehanna County


      Tioga County


      Union County


      Venango County


      Warren County


      Washington County


      Wayne County


      Westmoreland County


      Wyoming County


      York County