Results 4 results found Main open-pit copper-sulphur mine at Rio Tinto, Huelva, Southwest Spain, Europe Pathway through steaming Sulphur pits, Hell Valley, Shikotsu-Toya National Park, Noboribetsu, Hokkaido, Japan, Asia Pathway through steaming Sulphur pits, Hell Valley, Shikotsu-Toya National Park, Noboribetsu, Hokkaido, Japan, Asia Volcanic sulphur pits in front of a hotel complex, Noboribetsu, Hokkaido, Japan, Asia
