Indiana

Historical marker location:

Cumberland Township, Pennsylvania

( Memorial is at the intersection of Colgrove Avenue and East Confederate Avenue, on the right when traveling west on Colgrove Avenue.)

Marker installed: 1970

Liberty - Equality.

Pennsylvania was the site of the deadliest nuclear accident in U.S. history. In 1979, a partial meltdown occurred at the Three Mile Island nuclear power plant in Harrisburg, Pennsylvania.