Henry De Tonty Woods

About Henry De Tonty Woods

At 15,000 acres, the Palos Preserves in southwest Cook County are the largest concentration of preserved land in the Forest Preserves. Thanks to more than three decades of habitat restoration, they also hold some of the highest-quality natural areas in the county. These trails join many popular sites, such as the Little Red Schoolhouse Nature Center, Pulaski Woods, Saganashkee Slough and Maple Lake which is home to a mountain bike staging area that provides access to almost 40 miles of unpaved trails.

Get outside and give back.

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Volunteer with Openlands​

Connecting people to nature where they live.

As innovative protectors and stewards of the land since 1963, Openlands exists to create access to nature for all. Through local alliances, forward vision, and persistent action, Openlands connects and leads conservation work, serving as a guiding voice for communities, organizations, and more effective policy in northeastern Illinois and the surrounding region.

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Jean Franczyk

See you at the 2026 Openlands Annual Luncheon!

Join us on Oct. 21 for “From the Ground Up,” honoring Jean M. Franczyk and featuring Dr. Tessa Francis as keynote.