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