I enjoy your explorations!! That red-ore mine with the four slope haulage ways was amazing and thank you for showing it to us!!! I love the double-horizon adjustment they had to put in for the hauling equipment so they could reduce the strain of hauling stuff up its always amazing see that type of over-and-under engineering occurring.

Wow that was a huge one. Looks like you could have driven a tractor trailer rig through it. Well done !

Those wheels for the hoist are called sheaves. I operated an vertical shaft hoist when I was a kid and mined underground. Bad place to be.

When they smelt the ore, where did the remains of the rock end up? It had to be a tremendous amount.

Things go better with coke 🎉