One of the underground creeks in Duluth, somewhere under the East Hillside neighborhood.
The quality assurance labs were no doubt a busy place.
The steel awning and its elegant staircase are one of my favorite features near the old carpentry shop. The gymnasium-theater is in the background.
The dredge is divided into four levels. The top level has controls for the tailings boom and, when it was there, the bucket excavator.
I am not sure, but I think this section was a storehouse; it has two ramps that connect the rail yard outside and the blacksmith shop. On all of the historic doors that face that part of the yard, signs caution workers to look out for cars…
An ajar car elevator car afar, technically.
Typical bunk rooms in MS-20.
This mean-looking thing had a purpose, probably, but that function has been lost to decades of expansion.
Beside the shaft building are two fans on skids, indicating they were used underground.