Pontoon Raffle: Enter to Win a 2025 Viaggio Pontoon

The Boathouse at Grand Lake is giving away a 2025 Viaggio pontoon to benefit the Lake Improvement Association.

VIDEO: Pro Fisherman Matt Tuttle Presents at Nov. 2024 LIA Meeting

Professional fisherman Matt Tuttle discusses his experience fishing on Grand Lake.

View video and slides from Mercer County Agriculture & Natural Resources Director Theresa Dirksen's presentation.

The Lake Improvement Association will hold its annual elections on Saturday, Dec. 7, 2024, at the December member meeting to

Water quality updates from the October 2024 LIA meeting.

Thank you to all the amazing volunteers!

The Lake Improvement Association knowledge base features reports, data, statistics, action plans, and more learning resources.

Welcome to the Lake Improvement Association's Education Series. View each installment to learn more about Grand Lake St. Marys.

Minutes from the monthly LIA Member Meeting, held at 10 a.m. every first Saturday of the month at the Celina Moose.

Check out fun photos from past Lake Improvement Association events! Find your own photos - and photos of your friends!