Mercer County Historical Society Director Cait Clark gave a presentation on Grand Lake's oil history at the April 2025 Lake Improvement Association meeting.

Wright State University Lake-Campus Biology Professor Dr. Stephen Jacquemin provided a water quality update at the April 2025 Lake Improvement Association member meeting.

A recent study published in the Wetlands science journal examined the long-term impact of the Coldwater Creek Restored Wetland on water quality within the Grand Lake St. Marys watershed.

Write to your senator to oppose H2Ohio budget cuts that could impact Grand Lake's water quality.

The Lake Improvement Association recently donated $500 to sponsor this year’s Grand Lake Crappie series. We support events like this

The Governor’s Cup Regatta will be back on Grand Lake this June 21 and 22! The Lake Improvement Association recently

Celina Lions Club recently donated $5,000 to be used for the construction of a new shelter house adjacent to the

The Lake Improvement Association recently donated $4,000 to sponsor fireworks at the Celina Lake Festival. The LIA sponsors local events

A few months ago, we reported that the state allocated $2.6 million to repair the berm at Prairie Creek. That

On March 5, 2025, Board Member Michael Emans was in Columbus at the Ohio Statehouse to give testimony in front