McHenry County Highway A42 Map 2025-09-12 Roadnow Traffic | Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Map for major citites along McHenry County Highway A42 Union Map Marengo Map McHenry County Highway A42 Exit/Junction Map Junction @ South Union Rd(IL:McHenry T65) Map Nearby city: Union Junction @ Dunham Rd Map Nearby city: Union Junction @ E Grant Hwy(US 20) Map Nearby city: Marengo
