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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.

Governor JB Pritzker Illinois.gov Contact IDNR DNR A to Z

Three picnic areas are available for use at Castle Rock, with shelters, picnic tables, playground equipment, grills, toilets, and drinking water. Scattered picnic tables are also present along the river. One of the picnic areas offers a beautiful view over the Rock River Valley. Two of the park's shelters may be reserved for a fee (contact the site headquarters).