Half Day Forest Preserve

About Half Day Forest Preserve

Half Day provides the opportunity to see the powerful effects of water and fire. Prior to settlement by Europeans, human and natural caused fires were an important disturbance that helped shape the natural communities we find along the Des Plaines River. As a result, Half Day, which is situated west of the river, supports the oaks and prairie plants that thrived under fire’s influence. Though many natural areas at Half Day were degraded by farming, some survived and others are being restored.

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More to Explore in Lake County, 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.