Rev. Poppy Haze on Nostr: modern mining typically occurs in a tunnel that's about like 4' 5" - 5' tall (134cm - ...

modern mining typically occurs in a tunnel that's about like 4' 5" - 5' tall (134cm - 152cm) using shuttle cars where you sit angled staring at the rock above you. It only needs a handful of people to set up an automining machine, these low tunnels are more stable.