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Historical Markers in Flat Rock
Tiffin is the county seat for Seneca County
Flat Rock is in Seneca County
ADJACENT TO SENECA COUNTY
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| On Main Street (County Road 29) north of Alternate County Road 178, on the right when traveling north. |
| On Main Street (County Road 29) 0.1 miles Local Road 0199, on the right when traveling south. |
| On Main Street north of County Road 178, on the right when traveling north. |
| Near Ohio Route 46 east of County Road 29, on the left when traveling east. |
| Near Huron-Seneca County Line Rd (Ohio Route 269) south of County Road 46, on the right when traveling south. |
Nov. 13, 2026