We protect Lac Courte Oreilles and Little Lac Courte Oreilles through research, restoration, and outreach ...
so you can enjoy them every day,
and for generations to come.

Lake Water Quality

Independent research firms and more have documented what is happening to this lake, why, and the solution.

Learn More →

Our Mission

"To Protect and preserve this fifth largest natural lake in Wisconsin, designated an Outstanding Resource Water."

Learn More →

Life on the Lake

COLA members do whatever they can as homeowners to keep the lake healthy and they have fun doing it.

Learn More