McHenry County Audubon Society
P.O. Box 67
The McHenry County Audubon Society (MCAS) is the oldest nature conservation group in the county. As a chapter of the Illinois Audubon Society, our goals are to:
Meeting Days/Hours: Held at the Crystal Lake Nature Center, 330 N. Main St., Crystal Lake, IL 60014
Second Thursday of October, November, February, March, and April at 7 p.m.