The Mines lie beneath Mechanical and supplement the silo’s ore; Juliette now proposes taking their girders to brace the tunnel.
Shirly described the mines as farther down than the mechanics’ living and working area. They supplement the silo’s ore stockpiles, while lateral excavation is forbidden. Juliette now proposes removing girders from the mines to brace the tunnel.
The mines provide supplementary ore and are now a proposed source of tunnel supports.