Find driving directions from your hometown using mapquest.com. Prairie Crossing is on Rt.45, one mile south of Rt.120 in Grayslake, Illinois. From Chicago take 94 or 41 north to 120W to Rt.45, left again 1 mile to Prairie Crossing. From western suburbs, take 294 north to 120W to Rt.45, turn left. From north, take 94 south to 120W to Rt.45, turn left.