The final coordinates are listed on the cache page, but you will need to guess the correct Chicagoland area code to get to the logbook. The container is a 3-digit combination lock container. These are the Chicagoland area codes: 224, 312, 464, 630, 708, 773, 847, 872.
Make sure to watch the traffic. Very close to Rt 47. Congratulations to cluehunter for getting the ftf!