Grand Lake

Grand Lake St. Marys State Park is a public recreation area located on 13,500-acre Grand Lake in and counties, . Grand Lake is the largest inland lake in Ohio in terms of area, but is shallow, with an average depth of only 5–7 feet.
  • Reservoir
  • …has a surface elevation of 869 feet (265 metres)
  • Also known as
    “Celina Grand Reservoir”
    “Grand Lake - Saint Marys”
    “Grand Reservoir”
    “Lake Mercer”
    “Lake Saint Mary’s”
    “Mercer County Reservoir”
    “Mercer Reservoir”
    “Saint Marys Reservoir”

Places of Interest

Highlights include Grand Lake St. Marys Seaplane Base and Grand Lake St. Marys Lighthouse.
Nyttend, Public domain.
Lighthouse
The , also known as the… is situated 1½ miles northeast of Grand Lake.

Places in the Area

Nearby places include Montezuma and Celina.
Nyttend, Public domain.
Village
is a village in , , United States. is situated 3½ miles southwest of Grand Lake.
Tysto, Public domain.
is a city in , serving as the county seat of Mercer County.
Hamlet
is an unincorporated community in , United States. is situated 5 miles north of Grand Lake.
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Latitude
40.52667° or 40° 31′ 36″ north
Longitude
-84.50072° or 84° 30′ 3″ west
Open location code
86GQGFGX+MP
Geo­Names ID

Satellite Map

Discover this place from above in high-definition satellite imagery.
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Ohio: Highlights

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