Vertical Shafts
Arnao Mine – RCAM
Castrillón

Vertical Shafts
Polio Mine
Hueria de San Juan, Mieres

Pozo Barredo (Mieres)

Vertical Shafts
Barredo Mine
Mieres

Vertical Shafts
San Luis Mine
La Nueva, Langreo

Vertical Shafts
El Entrego Mine
El Entrego, SMRA

Vertical Shafts
Fondón Mine
Sama de Langreo

Vertical Shafts
Soton Mine
El Entrego, SMRA