These directions assume that your starting point is Champaign-Urbana:

Some late news is that the bridge is out on Highway 22 that leads north to the forest preserve from Penfield. So don’t go that way! You’ll have to take route 45 north out of Rantoul and turn right at 3500 North or, if you’d rather still come east out of Rantoul, just go north on 2300E and then a right on 3500N.