The stonework was done by a local handyman of sorts, who was also a guard at a nearby insane asylum. He did a great job, it seems to me.
A sheik mustard-yellow paint scheme across the roofless engine house goes great with the industrial moss and rust.
The floor IS the machine…
In the power house corner is this gratuitously gigantic doorway. It used to be even bigger, too, as indicated by the brick arch another foot over the top windows.
The hoist signal dangling beside the modern mine shaft would ring a bell next to the giant electric motors that would send the men and machinery into the underground.
A side door for the brick factory.
Judging from old pictures and maps, raw ore was dumped through these hatches, stamped into a rough powder, and hastily sorted before sending the best ore to the mill. Mills charged by tons of rock sent to them, so it did not pay to send them obvious tails.