Argonne National Laboratory (ANL) Argonne National Laboratory is a U.S. Department of Energy research facility located 25 miles southwest of Chicago. The lab sits on 1,500 acres surrounded by the Waterfall Glen Forest Preserve and hosts world-class research facilities including the Advanced Photon Source. Campus Navigation Getting Around Campus Map: ANL Campus Map Complete facility layout and building locations Parking areas and shuttle routes Emergency assembly points and safety information Accommodations Guest House: ANL Guest House Local Restaurants: Nearby Restaurants Contact Information Main Number: (630) 252-2000 (regular hours) After Hours: (630) 252-5731 Security: Valid photo ID required for all visitors Note: ANL is a secure federal facility. All visitors must follow proper entry procedures and carry valid identification at all times.