ST. MARYS - Grand Lake St. Marys State Park enjoyed a record-breaking year for overnight stays in 2024, riding a wave of ...

CELINA — The Lake Improvement Association will present a program about the history of oil on Grand Lake St. Marys during a ... water quality, and state park updates. Doughnuts and coffee will ...

ST. MARYS — The Girl Scouts of Western Ohio will plant trees at Grand Lake St. Marys State Park this spring, and they’re looking for volunteers to join them. The girls are participating in the ...