Grand Lake St. Marys State Park Maps
St Marys, OH
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Get Driving DirectionsGrand Lake St. Marys State Park Description
Originally constructed as a feeder reservoir for the Miami & Erie Canal, Grand Lake St. Marys was the world's largest reservoir when built. Today, Grand Lake St. Marys State Park offers 52 miles of shoreline for boating and fishing, as well as a large campground, picnic areas, and a swimming pool.
Coordinates
: 40.521, -84.421Area
: 591 acres (2.39 km²)Official Link
: Grand Lake St. Marys State Park