An unintentional skylight makes the inside of the office glow, showing the inside of the front door and its strange lock.
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Camera: Pentax 67.
Easier-to-demolish parts of the power plant were torched apart. Catwalks to nowhere meant lots of dead ends.
A small wood-paneled office for the on-duty keeper to use.
The largest room was the diesel laboratories, which tested various devices and fuel additives to make it safer to mine underground with diesel trucks and other machinery, such as at White Pine Mine, Michigan.
Sharks in the floor.
An automatically closing door, in case of fire or flood in the engine compartment.
This corner of the building was the coal room, used to feed the two big boilers inside. The steam equipment has been replaced with electric, so this section may not have changed much in the past decades.
The side of the maintenance shops, still home to several disassembled electric carts.