How is it surmised that he was going fishing...in a PA February at 3pm with both temps dropping and light soon to start fading? Unless he walked the 2 miles, with his fishing gear (by which time it would be an even later start) he or someone else drove there.
I also can't think of anything good 16 olds would be doing hanging out at grain elevators...perhaps he had a inebriated accident there. Or if he fell off the pier, hypothermia would set in quickly and he could have traveled pretty far out (under cover of darkness) and ended up as far as MI.
