Unserheim

Historical marker location:

Salem, Ohio

( Marker is at the intersection of Franklin Avenue (Ohio Route 344) and Summitt Street, on the right when traveling west on Franklin Avenue.)

Marker installed: 2003

The Ohio River, which forms the state's southern border, played a significant role in the Underground Railroad, a network of secret routes and safe houses used by African American slaves to escape to freedom in the North before the Civil War.