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