Old Union Avenue B Plant signals heading east on track 2 (Clear). The first image shows tracks 2, 3, and 4. The second closeup image shows tracks 2 and 3. MP 1.8. That should be the I-94 overpass where you see the Mayflower truck. Note the three-headed westbound signals on the backside.<br /><br />https://www.acm.jhu.edu//~sthurmovik/Railpics/13-06-21a_CHICAGO_RACETRACK/BNSF_Chicago-Sub-UNION-AVE-A-eb-SL-gantry-tk2-Clear-wide.html<br /><br />[i]Click the images below to enlarge. Click again to minimize.[/i]