Fifty-six miles northwest of downtown Chicago lies Volo Bog State Natural Area, home to the only open-water quaking bog in Illinois. Volo Bog - THE BOG - was dedicated as the 25th Illinois Nature Preserve in June, 1970. As the southern-most open water quaking bog in North America to exhibit all stages of bog succession, it was designate a National Natural Landmark in 1974.
A floating mat of sphagnum moss, cattails and sedges surrounds an open pool of water in the center of the bog. Currently, the bog itself is unaccessible due to the boardwalk closure. It will remain closed until funding