Corrected entry: After Indy climbs out of the pit after being double crossed by the guide, he comes upon the guy impaled on the same trap that Forrestal's body was on when they entered. However, the already sprung trap with the body wasn't visible anywhere.
Movie Nut
22nd Mar 2016
Correction: This trap could have easily been triggered by something that they missed on the way in but didn't on the way out.
THGhost