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 (August 2023): Marker reported missing.

7-33 Scioto Marsh

Side A: The Scioto Marsh, the largest of three extensive marsh areas in western Hardin County, was formed in the low basins left by the last retreating glacier 10,000 years ago. It covered more than 16,000 acres and was thought to be a source of malaria by the early settlers. A drainage project was begun in 1859, and the remaining peat-ladened soil helped make this rich agricultural area.
Side B: Same
Sponsors: The Country Connection Club and The Ohio Historical Society
Address: 10012 Township Road 106, 
Location: Just S of intersection of OH 195 and County Road 110
Latitude: 40.674118
Longitude: -83.7850709