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The IDNR headquarters at 1 Natural Resources Way in Springfield has experienced a power outage and tree damage throughout the grounds as a result of severe storms in the area. The agency expects to reopen the building to the public on Monday, June 15, 2026, though this could be subject to change. Check back here for an update before planning to visit the office in person.

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Big Bend

Park Closures

Park Activities

The majority of the area is bottomlands along the Rock River that are interspersed with native grasslands, tracts of woods, oxbow lakes, and several wetlands and marshes. A small portion of the site is uplands composed of sandy soil with fields bordered by tree lines.

Follow this link for information regarding hunting Big Bend.

Park Closures

Park Information:

Northwestern Illinois

18750 Lake Road

Morrison

61270

815-772-4708

41.64905

-90.0183

Other Parks in Illinois:

Map of Illinois DNR Regions State Parks in Northwestern IllinoisState Parks in Northeastern IllinoisState Parks in East Central IllinoisState Parks in West Central IllinoisState Parks in Southern Illinois