Looking through perfectly clear water into an abandoned mine room. My guess is that it contained some pumps to keep the mine dry and equipment related to the elevators.
One of my favorite signs, informing workers about to descend into the open-top grain bins about basic procedures. This was in ADM-Annex 1 (connected to the cleaning house via skyway), so it will never be seen again, unless the sign lands luckily when the elevator is demolished.
A broken signal light that would indicate to incoming engineers and brakemen the status of the dock deck. The streetlight-style lighting is a retrofit; originally the top of the dock would be lit by strings of lights suspended by towers on each side of the deck… a poor system according to the workers at Allouez who had the same lights.
The two exhaust vents coming out from the boilers en route to the stacks. Plywood marks where where catwalks were removed to extract equipment.
A self portrait from more than a decade ago.
In the corner of most of the factory floors, freight elevators flanked restrooms to leave more central space for machines and their masters.
This picture gives you the idea of how the boat-loading control rooms are set up; they lean over the dock and Lake Superior to be able to see down into the holds of the boats… important, considering how quickly it loaded the boats! An uneven load could put stress on the hull of a laker, increasing the risk it will break and sink.