Keystone Marker Trust

Re-Inventing the Perfectly Pennsylvania Keystone Marker

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Dauphin County

Mahatango Creek

1 week ago September 6, 2026 in Dauphin County.

Millersville State Teachers College

August 18, 2026 in Dauphin County, Lancaster County.

Harrisburg (No Next)

Original location undetermined    

May 7, 2026 in Dauphin County.

Private

Currently privately owned

June 8, 2021 in Dauphin County.

Linglestown (Rockville-7)

  PA Route 39 Near Fire Dept.

August 22, 2020 in Dauphin County.

Hershey (Harrisburg – 13)

  US 422 – West Chocolate Avenue

July 26, 2015 in Dauphin County.

Hummelstown

No photo of this marker is known. It was likely located on “old” U.S. Route 22 (William Penn Highway)

July 20, 2015 in Dauphin County.

Gratz (Tremont – 21)

PA Route 25 near Valley Drive Road  

July 7, 2015 in Dauphin County.

Gratz (Berrysburg – 6)

  PA Route 25 near Theater Road

July 7, 2015 in Dauphin County.

Elizabethville (Lykens – 7)

U. S. Route 209  

June 29, 2015 in Dauphin County.

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