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Ohio State Parks

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USA Parks
Northwest Ohio Region
Grand Lake State Park
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Grand Lake State Park Grand Lake St. Marys © Lonnie Williams
Lake View
Grand Lake State Park Grand Lake St. Marys © Lonnie Williams
Lake View
Grand Lake State Park Grand Lake St. Marys © Lonnie Williams
Lake View
Grand Lake State Park Grand Lake St. Marys © Lonnie Williams
Lake View
Grand Lake State Park Grand Lake St. Marys © Lonnie Williams
Campground Entrance Sign
Grand Lake State Park © Gene Shirk
Grand Lake State Park Grand Lake St. Marys © Lonnie Williams
Entrance Sign
Grand Lake State Park © Gene Shirk
Grand Lake State Park © Angie Little
Grand Lake State Park baby ducks with their mommy © Angie Little
Grand Lake State Park © Angie Little
Grand Lake State Park © Angie Little
Grand Lake State Park cabins at the campground © Angie Little
Grand Lake State Park cottonwood floating on the lake © Angie Little
Grand Lake State Park © Gene Shirk
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834 Edgewater Dr
St Marys, Ohio   45885-1132
(lat:40.5451 lon:-84.4329) map location

Phone: (419) 394-3611
Reservations: 866-644-6727
Originally constructed as a feeder reservoir for the Miami-Erie Canal, Grand Lake St. Marys was for many years recognized as the largest man-made reservoir in the world. This large lake is the gateway to swimming, boating, camping and fishing in one of Ohio's oldest state parks
Nature of the Area
Although hard to imagine, at one time the Grand Lake St. Marys region was part of a vast forest wilderness that stretched from the Allegheny Mountains of Pennsylvania to the prairies of Illinois. Today, in place of this forest are fields of corn, soybeans and wheat.

In addition to forests, pre-settlement Ohio contained large prairies and wetlands. The land which now lies beneath St. Marys reservoir was once a vast wet prairie. Today, the park contains varying habitats including woodlands, wetlands, and prairies in addition to the surrounding croplands.

Grand Lake St. Marys lies along one of the country?s major migration routes. Water birds using the lake as a resting stop include Canada geese, ducks, grebes, swans, egrets, loons, herons, cormorants and ospreys. Many ducks, geese and heron also nest here. Bald eagles, magnificent birds long absent from the area, have again nested on the southwest corner of the lake at the wildlife refuge. Other animals of the park include fox squirrel, mink, raccoon, beaver, coyote, white-tailed deer and many others.
History of the Area
The area in and around Grand lake St. Marys State Park played an important part in the development of the Northwest territory. The St. Marys River served as a vital link between the Great Lakes and the Ohio River. Because of this heavy water traffic, the renegades Simon and James Girty established a trading post, which eventually evolved into the town of St. Marys. General ?Mad? Anthony Wayne passed through the area during the War of 1812, and some of his men returned here to make their homes.

In 1837, work commenced on a reservoir for the Miami-Erie canal to maintain the canal?s five-foot water depth. Workers using hand tools were paid 35 cents a day and a jigger of whiskey to keep malaria away. At its completion in 1845, 13,500-acre Grand Lake was the largest man-made lake in the world. The lake was connected to the canal by a three-mile feeder. The canal prospered until the coming of the railroads in the 1870s. The area experienced another boom in the late 1890s when oil was discovered. For a time the lake was dotted with oil derricks. Today a pile of rocks near the center of the lake marks the spot of the last producing well.

Grand Lake St. Marys and other canal feeder lakes in the state were the first areas to be dedicated as Ohio state parks in 1949.
Ohio does not have an annual pass and does not charge entrance fees to state parks.
GeneralLand, acres591
 Water, acres13,500
 Picnic Shelters, #7
 Swimming Beachyes
 Nature Centeryes
 Nature Programsyes
BoatingBoat Rentalyes
 Boating LimitsUnlimited HP
 Seasonal Dock Rental111
 Launch Ramps, #8
 Fuel For Saleyes
CampingPrimitive, #10
 Electric Sites, #154
 Pets Permittedyes
 Flush Toiletsyes
 Camp Commissaryyes
 Camper Cabins, #7
 Group Camp, capacity100
 Campground Beachyes
WinterCross-Country Skiingyes
 Ice Fishingyes
The campground contains 216 sites of which 154 are equipped with electricity. Facilities include flush toilets, laundry, showers and a dump station. Pets are permitted. The campground also offers a camper's only swimming beach, boat launch and boat docks/tie-ups. Five spacious Cedar Cabins with all the amenities of a fully-equipped RV are also available for daily or weekly rental. A seasonal naturalist holds scheduled programs, including movies, Thursday through Saturday night.
The park offers four public swimming beaches as well as other swimming areas provided for boaters.

Grand Lake State Park is located near Celina, Lima and Saint Marys

Picnic areas with tables and grills are located in scenic areas around the lake. Some picnic shelters are on a reservation basis. Contact the park office for details.
Area Attractions
Lake Loramie State Park, southeast of Grand Lake St. Marys, offers fishing, boating, swimming and camping. The Miami-Erie Trail, a 47-mile portion of the statewide Buckeye Trail, begins at Lake Loramie and passes within a mile and a half of Grand Lake St. Marys State Park. The Miami-Erie Trail terminates at Delphos, approximately 22 miles north of St. Marys.

St. Marys Fish Hatchery, located on the lake's eastern shore is operated by the ODNR Division of Wildlife. The hatchery raises saugeye, walleye, channel catfish and bass for distribution in the public fishing waters of the state.

The Neil Armstrong Air and Space Museum is located in Wapakoneta, Armstrong's boyhood home.

Visitor Comments, Memories and Reviews
July 9 Great park by Local
park review stars; one to five Very well maintained
May 31 Great Campground
park review stars; one to five Awesome Campground. Kids love to ride their bikes there. Very freindly vip, and bathrooms are kept very clean. We camp here several times a camping season. Swimming is not so good very dirty lake.
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Area Campgrounds
Wapakoneta KOA Holiday
14719 Cemetery Road
Wapakoneta, OH
Rustic Haven Restaurant
931 Koehn Road
Saint Marys, OH
Kozy Kampground
5134 It's It Road
Celina, OH
Area Fishing Related Businesses
Grand Lake Bait & Tackle
521 Jackson St
St Marys, OH
(419) 394-6306
Outdoorsman The
172 E Bank Rd
St Marys, OH
(419) 394-5769
Wildlife Bait & Tackle
565 E Market St
Celina, OH
(419) 586-3935
Lakeview Drive-Thru
103 E Logan St
Celina, OH
(419) 586-4205
Area Cabins and Lodges
Fairview Resort
1840 E Market St
Celina, OH
(419) 586-2597
Fox's Den Golf Course
1221 Irmscher Blvd
Celina, OH
(419) 586-3102
West Lake Hotel Villas
1101 W Bank Rd
Celina, OH
(419) 584-1444
Nearby Hotels

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Ohio State Parks