Behind the barge unloader (a Webster for those grain tech nerds out here) that used to extract grain from docked boats. The ladders are fun to climb, even though they get warped and wavy in places. High in the elevator would have been a crane engine that would lift the unloader, packed with a bucket conveyor, while workers would manipulate the direction of the spout with ropes manually. The buckets would rotate, scraping and elevating the grain into the silos above. It’s a rare piece of equipment for the Great Lakes.