Ohio State Route 770 is a short route in northern Adams County. It begins in the town of Seaman, at a point along Ohio Route 247 just north of Ohio Route 32. From this point, Ohio Route 770 heads northeastward along a winding path through Tranquility State Wildlife Area. After 10 miles, Ohio Route 770 ends at Ohio Route 73, a couple miles southeast of the hamlet of Belfast, Ohio.
My photo for Ohio Route 770 signage comes from the northeastern end at Ohio Route 73. The guide marker depicted faces northwesterly travelers on Ohio Route 73, and it helps those travelers locate the left turn onto Ohio Route 770 toward Seaman. This photo was taken during the October 2018 trip to southwestern Ohio.