The Great Black Swamp covered much of northwestern Ohio and was drained and farmed by the early pioneers despite many hardships.It is very flat land containing some of the most fertile farmland in the United States.
Hoyesville probably is Hoytville in Wood Co.Ohio which was in the Black Swamp area. The county seat is Bowling Green.
Huron Co.is in north central Ohio, separated from Wood Co. by Seneca and Sandusky counties on the west. It is not in the Black Swamp area. Its county seat is Norwalk. Huron Co. is south of Erie Co. which borders Lake Erie. It's county seat is Sandusky.