The crash site was about 1 mile past the end of 32R at the old Ravenswood Airport which had long been closed due to proximity to ORD
It is immediately north of the Chicago Police Canine Training Facility which was operational at the time. The aircraft came within about 1/2 mile of the Amoco Oil tank farm just to the west and less than 1/2 mile short of the Northwest Tollway (I-90).
On that sad day, the air was fairly clear and the smoke plume could be seen from far away. We could see it from our building in downtown Chicago.
This link displays a satellite photo with labels, and you can zoom out to see the surrounding area.
135 hrs PIC (mostly PA-28) - not current. Landings at MDW, PIA, JAN.