Lee Keaser sits down with Brian Miller of the Lake Improvement Association for a conversation about the lake.

Hydroplane driver Tony Black – a six-time national champion and world champion who pilots one of the fastest boats in

The All Abilities Playground for the East Bank at Grand Lake St. Marys is here, and we’re just one step

Mercer County Ag & Natural Resources Director Theresa Dirksen offered an update at the March 2026 LIA meeting.

Pro fisherman Matt Tuttle discussed how to catch crappie at Grand Lake St. Marys at the March 2026 LIA meeting.

The Ohio Department of Natural Resources has released its 2026 dredging plan for Grand Lake St. Marys. For the first

Learn why gizzard shad are frozen in the ice on Grand Lake this winter.

This graphic compares one of Grand Lake’s worst years for microcystin levels (2015) with the most recent full year of data (2025).

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

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