Grand Lake St Marys State Park
Mercer County, Ohio · Grand Lake St Mary's · fishing-access
Shore Fishing fishing-access
Maintained by: Ohio DNR
Location & Directions
GPS: 40.5122°N, 84.5388°W — Get Directions
Other Access on Grand Lake St Mary's
Data sourced from Ohio DNR public water access records. Last verified: March 19, 2026. Learn how we maintain this data.