Vertical Shafts
Santa Bárbara Mine
Turón, Mieres

Vertical Shafts
María Luisa Mine
Ciaño, Langreo

Vertical Shafts
Arnao Mine – RCAM
Castrillón

Vertical Shafts
Polio Mine
Hueria de San Juan, Mieres

Vertical Shafts
Solvay-Lieres Mine
Lieres, Siero

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
La Camocha Mine
Gijón

Vertical Shafts
Soton Mine
El Entrego, SMRA

Vertical Shafts
San Jorge Mine
Caborana, Aller

Mountain Mines
La Nalona Adit
Fondón Mine, Langreo