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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

​Accessibility at Matthiessen: 

  • Parking - Matthiessen Dells parking lots are asphalt with 4 accessible parking spaces. Concrete sidewalks are adjacent to the parking lots. There is a wheelchair ramp to the law enforcement office. 

  • Restrooms - The Matthiessen Dells area has an accessible flush toilet, and the Matthiessen River Area has three accessible vault toilets with concrete pathways leading to them.

  • Picnicking - The large shelter near the fort is accessible and has a concrete path leading to it from the parking area.

  • Trails - There is a 1/4-mile trail at the Matthiessen Lake Shelter Area. There is a wooden ramp to the Lake Falls bridge, then a concrete path leading west. The bridge surface is weather-dependent. 

  • Camping - The equestrian campground is open May 1-October 31 and offers one accessible campsite and a rider loading ramp. There are concrete sidewalks to the vault toilets. 

  • Service animals are welcome in the park, and water is available in hydrants at the shelter areas.