Remarkable Ohio


Below is a complete listing of all Ohio Historical Markers. To find a detailed marker listing including text, photographs, and locations, click on a county below. Our listing is updated by the markers program as new markers are installed and older markers are reported damaged or missing.

ALERT: There is another marker 1-7 in Adams County, 'Seaman.'

1-7 Mile Marker

Side A: The earliest highway signs along the National Road (Route 40) in Ohio were milestones located at one-mile intervals along the north side of the roadway. Each stone indicated the distance to Cumberland, Maryland, the eastern terminus of the National Road, and to the nearest cities and villages for both east and westbound travelers.
Side B: Blank
Sponsors: The Ohio Historical Society
Address: I-70 EB rest area just past mile marker 210, 
Location: I-70 E Rest Area between exits 208 and 213
Latitude: 40.0632790
Longitude: -81.0139190