This is the far interior of the hotel, where the darkness made the shag carpet seem to move whenever the trees outside swayed. That is to say, constantly.
It seems logical that, at one time, a rock crusher was installed at the base of the mine rails shown here at the top of the Concentrator. Rocks small enough to fit between the rails would automatically bypass the crusher and continue to the work floor via the hopper below.
When the ship loaders were added, a doorway was cut through the metal silo to make a room for the grain handling equipment. Note the dust sensor in the corner of the torch-cut archway.
A tore-up Colorado Southern Railway sign and the majestic (in an industrial sense) Argo Mill. Go. On. The. Tour. Leica/Summilux 35/Ektar 100
Before developers saw to cut and cut the flour mills inside Pillsbury, they stood at the ready beside various purposeful chutes the traversed the floors of between sorters. These machines were belt-driven by the power of Pillsbury’s Mississippi headraces and turbines, the force of which notoriously shook the building’s foundations themselves. The wheels would change the grade of the flour, or the size of the dust produced from crushing the kernels.
A closeup of the key to the Dominion (aka Government of Canada) Elevator manlift. That it needed such a guide does not inspire confidence.
An old stoker in a power plant that was abandoned long before the mill next to it, by all indications. Sugar mills burned dry beet pulp pellets for fuel.
The top floor of the nitrating house was full of switches and breakers for the operation below, each bearing a label and number. Nowadays everything is printed, but when INAAP was built, all these signs were painted by hand.
These buildings were largely used as concentrators for the crushed rock, although I did spy some small mills inside these too.