Different doors for different vehicles, I would guess. White Pine Mine used tire-based vehicles, rather than track-based, making it pretty different than other mines I’ve been to.
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.
When the dock across the slip loads, the lighting below the otherwise dark ‘5’ can get a little wild.
The left tunnel goes to the opposite side of the car elevator seen on the right. There was a time when Fords were shipped by barge on the Mississippi. This freight elevator brought them from the assembly floor to river level. A separate elevator was for moving men and silica up and down.
From the bottom of the skyway I looked back, my eyes tracing the vines from the marsh up the smokestacks to the perfect Midwestern sky.
As sun set the car barn underwent a temperature inversion causing a dense fog to rise from the puddles where tracks once where. I opened the Yellowstone-sized doors and watched the bank roll out into downtown Mitchell.
One of the most beautiful exterior features of the hospital are these turret vents, highly stylized and beautiful to behold.
The basements of the barracks were often stone and brick, and many of them were connected by short tunnels.
Indianapolis’ beautiful downtown is in the distance, past the gas storage tank.