Find Grand Lake St Marys State Park in Ohio Trails+ powered by the OuterSpatial app. The 13,500-acre lake allows unlimited horsepower. A 300-foot no-wake zone has been established and is enforced around the lake’s 52 miles of shoreline. Eight state-operated launch ramps provide access to the lake.

The large campground at Grand Lake St Marys offers Full Hookup, Electric, and Non-electric sites along with access to the lake, boat docks, and tie-ups. Pets are permitted on all sites except for the area in and around the cabins.

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. The 13,500-acre lake is the gateway to swimming, boating, camping in a 198 site campground and fishing in one of Ohio's oldest state parks.

Grand Lake St. Marys State Park is a public recreation area located on 13,500-acre (5,500 ha) Grand Lake in Mercer and Auglaize counties, Ohio. [4] 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 (1.5–2.1 m).

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. The 13,500-acre lake is the gateway to swimming, boating, camping in a 198 site campground and fishing in one of Ohio's oldest state parks.

Grand Lake St Marys State Park Originally constructed as a feeder reservoir dug by hand for the Miami & Erie Canal, Grand Lake St. Marys was the world's largest reservoir when built. The region played an important role in opening up the Northwest Territory as the St. Marys River was a vital link between the Great Lakes and the Ohio River.

Aug 15, 2020 · Grand Lake St Marys State Park in northwest Ohio offers much in the way of water activities and history. The lake was created to be a feeder reservoir for the Miami and Erie Canal. The canal connected the Ohio River in the south to Lake Erie in the north.

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. The 13,500-acre lake is the gateway to swimming, boating, camping and fishing in one of Ohio's oldest state parks.

This large lake is the gateway to swimming, boating, camping, and fishing in one of Ohio’s oldest state parks. The campground contains 210 sites of which 142 are equipped with electricity. Facilities include flush toilets, laundry, showers, and a dump station.

Grand Lake St. Mary’s State Park Campground is located right on the 13,500-acre lake and has almost 200 campsites. There are 148 electric sites, 33 full hookups sites, 10 standard sites and 7 cabins.