Ohio has 110 natural lakes in 21 counties, and these are the 10 biggest. Here's what to know about each one. ... Here's what to know about Ohio's largest lakes that aren't Lake Erie.

The lake is about 5,100 acres, making it the third largest lake in Ohio, behind Grand Lake St. Marys (13,500 acres) in Auglaize and Mercer counties and Mosquito Creek Lake (7,850 acres) in ...

ST. MARYS, Ohio -- State regulators say tests on water taken from Ohio's largest inland lake reveal that it's no longer safe for swimming and water skiing.

Ohio’s largest inland lake at 13,500 acres, Grand Lake St. Marys has been described as the poster child of HAB affliction. The lake, located northwest of Columbus, started experiencing problems ...

Among the dams without plans is one at Grand Lake St. Marys, the largest lake owned by ODNR, and one at Wolf Run Lake in Noble County. That dam, at 76 feet, is ODNR’s tallest earthen dam that is ...

Lake Erie laps away in northern Ohio and is the 11th largest lake in the world. Here are some facts about the Great Lakes. Lake Erie. Average depth: 62 feet. Maximum depth: 210 feet.

Odell Lake in Holmes County (107 acres), Punderson Lake, a few miles south of Bass Lake in Geauga County, at 101 acres and Summit Lake in Summit County (100 acres) are also some of Ohio's largest ...