The east portal, looking toward Nopeming Junction and away from the US Steel ruins and Duluth’s ore docks.
Looking into the Argo Tunnel at its Idaho Springs portal. I was hoping to see tracks and a steel door, but found a busy crew of environmental workers installing a pipe between the bulkhead and new water plant.
I am not sure what caused the discoloration, but two of the walls near the door to the machine shop are stained yellow-red. I assume this had to do with the walls in relation to blowing piles of iron ore, and that the walls have been partly infused with iron oxide. Any other ideas?
Don’t know what’s heavier… the bricks or shadows.
The chief engineer had many phones. It’s my guess one connects to the pilot house and the other connects to the emergency steerage station that’s mid-deck.
A tunnel connecting the two larger caves in the hill; those that Jacob vented in the rear. The vents are still extant!
A heavy cloth separates the sanding station from other areas. This particular section seemed to specialize with chair seats, judging by the many unsanded blanks there.
A strange sight: Part of the drain here seems to have had a skylight of glass, which has since been filled over. However, the collapsing ceiling began to create natural skylights of its own.