Matthiessen State Park in Illinois. Stock photo by Mason Mulcahy on Unsplash
Matthiessen State Park is an Illinois state park located a few miles south of the more famous Starved Rock State Park. The main entrances to both parks are located on Illinois State Route 178.
This article uses material from the Wikipedia article “Matthiessen State Park“, which is released under the Creative Commons Attribution-Share-Alike License 3.0.