The Glen Lake Association is dedicated to preserving and protecting the water quality, natural resources, and quality of life in the Glen Lake/Crystal River Watershed through leadership, education, and collaboration.

To protect the natural diversity and beauty of northeast Michigan by preserving significant land and scenic areas and fostering appreciation and understanding of the environment.

To foster environmental stewardship of the Saginaw Bay Watershed and the Great Lakes ecosystem, and to provide personal development opportunities for learners of all ages through shipboard and land-based educational experiences.

To protect our lakes, streams, wetlands, and groundwater through respected advocacy, innovative education, technically sound water quality monitoring, thorough research, and restoration actions.

To manage the Grass River Natural Area, conserve and protect its watershed, and provide opportunities that increase knowledge, appreciation and community-wide stewardship of the natural environment.