2200 E. 103rd St.
Chicago, IL 60633
Natural areas are open from dawn to dusk daily.
At over 140 acres, Marian R. Byrnes is one of the largest natural areas in Chicago. The site, situated in the Jeffery Manor neighborhood, contains marsh, wet prairie, prairie, savanna, and woodland habitats. It is a great place to observe wildlife including frogs, snakes, birds, and deer. This park was previously known as Park No. 562 and Van Vlissingen Prairie.
After undergoing extensive ecological restoration, the park now provides community members with a safe space to relax and connect with nature. A paved multipurpose trail runs the length of the park, giving visitors access to multiple habitats and unique views.
Help keep wildlife wild, safe, and healthy by following posted signage and Natural Areas Rules and Regulations.