Holes were cut into the floor to extract equipment from the basements. it was interesting to see the I-beams extending through all the levels of Studebaker.
The elevator works on gravity… this is where a conveyor belt was to move the grain toward the main elevator to be loaded into ships.
One of the underground creeks in Duluth, somewhere under the East Hillside neighborhood.
The orange bars were secured to the tunnel walls to support electric lines for the mine carts. Lower parts of the sand mines were allowed to flood. The water was perfectly still, and made for a mud so thick it could suck off your boots.
A tunnel connecting the two larger caves in the hill; those that Jacob vented in the rear. The vents are still extant!
Some small candles light one of the few surviving tunnels that once linked buildings on the campus with the steam plant. In winter, it was common for patients to be transported through these to avoid the cold, and during the Cold War these served as nuclear fallout shelters.
Hand-shooting 4×5 underground. Must be Kate Hunter.