Oldfield Oaks County Forest Preserve

About Oldfield Oaks County Forest Preserve

Oldfield Oaks is an excellent example of an intact, mature oak woodland, a natural wetland, and a restored prairie. With this diverse mix of ecosystems, the preserve is home to a variety of wildlife, from foxes to great horned owls to western chorus frogs. Wildlife conservation efforts such as amphibian monitoring and bird counts take place at the preserve. It’s a beautiful spot to enjoy spring wildflowers such as trout lilies, jack-in-the-pulpits, spring beauties, trillium and May apples, but it also puts on a spectacular show of color in the fall.

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More to Explore in DuPage County, IL

Naperville, IL

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.