Lake guide
Ramps
West Bank Boat Ramp (Grand Lake St. Marys State Park)ODNR · west-end (Celina) launch by the West Bank day-use area
MapInfoEast Bank Boat Ramp (Grand Lake St. Marys State Park)ODNR · east-end (St. Marys) launch near East Beach
MapInfoCharts
Depth chartODNR Grand Lake St. Marys Fishing Map (PDF)
PDFInteractiveContact & rules
Boating & yacht clubs
SM
St. Marys Boat ClubFounded 1948 · NE-shore sailing club with clubhouse, hoist, and dry-sail berths · hosts frequent summer regattas
VisitAbout Grand Lake St Marys
Grand Lake St Marys is a 13,500-acre natural lake in Ohio, managed by Ohio Department of Natural Resources. Live water-surface elevation comes from USGS gauge 403204084342601. Public launches include West Bank Boat Ramp (Grand Lake St. Marys State Park), East Bank Boat Ramp (Grand Lake St. Marys State Park), and Windy Point Boat Ramp (Grand Lake St. Marys State Park). The St. Marys Boat Club is the active sailing club on the water.