News

This graphic compares one of Grand Lake’s worst years for microcystin levels (2015) with the most recent full year of ...

Wright State University Lake Campus Biology Professor Dr. Stephen Jacquemin gives an update on 2025 wetland performance in the Grand ...

Troy Shively discusses Grand Lake St. Marys' migratory birds at the February 2026 Lake Improvement Association member meeting ...

Mercer SWCD's annual tree seedling sale is underway. Order by the March 6, 2026 deadline. View the flyer for more ...

A new $2.54 million mixed-use building will be built at Grand Lake St. Marys State Park ...

Theresa Dirksen and Dr. Stephen Jacquemin were receipients of the 2025 Guardian of the Lake Award ...

ODNR Wildlife Research Technician Neil Baker discusses beavers, muskrats, and other Grand Lake furbearers ...

Theresa Dirksen presents on ag and natural resources ...

Dr. Stephen Jacquemin presents on water quality ...

LIA Trustee Brian Miller gave a wetlands and natural resources update provided by Mercer County Ag & Natural Resource Director ...

Grand Lake St. Marys State Park Manager David Faler gave an update on the state park and dredging efforts at ...

Jerry "Jerrdog" Love asked trivia questions about Grand Lake St. Marys at the November 2025 Lake Improvement Association member meeting ...