1245-2907 - Sulphur at the Stefanos Volcano Crater, detailed view, Nisyros Island, Dodecanese, Greek Islands, Greece, Europe

1184-9242 - Fairmont Banff Springs Hotel viewed from Sulphur Mountain top, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

1184-9241 - Mountain view from Sulphur Mountain top, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

1184-9239 - Cascade Mountain view from Sulphur Mountain top, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

1184-9238 - Mountain view from Sulphur Mountain top, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

1184-9235 - Mountain view from Sulphur Mountain top, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

1184-9236 - Cascade Mountain view from Sulphur Mountain top, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

746-90669 - Landscape in the geothermal area Hveradalir in the mountains Kerlingarfjoell in the highlands of Iceland. Europe, Northern Europe, Iceland, August

746-90666 - Hikers in the geothermal area Hveradalir in the mountains Kerlingarfjoell in the highlands of Iceland. Europe, Northern Europe, Iceland, August

746-90668 - Hikers in the geothermal area Hveradalir in the mountains Kerlingarfjoell in the highlands of Iceland. Europe, Northern Europe, Iceland, August

746-90667 - Signpost for hikers in the geothermal area Hveradalir in the mountains Kerlingarfjoell in the highlands of Iceland. Europe, Northern Europe, Iceland, August

746-90665 - Hikers in the geothermal area Hveradalir in the mountains Kerlingarfjoell in the highlands of Iceland. Europe, Northern Europe, Iceland, August

832-393982 - Caldera volcano with pumice fields, yellow coloured sulphur stones, Alexandros crater, Nisyros, Dodecanese, Greece, Europe

1116-51691 - Sunrise at Ijen Volcano crater; East Java, Java, Indonesia

1116-51710 - Sulphur smoke inside Ijen Volcano crater; East Java, Java, Indonesia

1116-51708 - Sunrise at Ijen Volcano crater; East Java, Java, Indonesia

1116-51707 - Sunrise at Ijen Volcano crater; East Java, Java, Indonesia

1116-51709 - Sunrise at Ijen Volcano crater; East Java, Java, Indonesia

832-393732 - Sulphur fields in front of volcanic craters, glowing lava fountains, steam and shimmering air Fagradal Falls, Reykjanes, Grindavik, Iceland, Europe

832-393730 - Sulphur fields and lava fields in front of volcanic craters, glowing lava fountains, steam and shimmering air Fagradal Falls, Reykjanes, Grindavik, Iceland, Europe

832-393731 - Sulphur fields in front of volcanic craters, glowing lava fountains, steam and shimmering air Fagradal Falls, Reykjanes, Grindavik, Iceland, Europe

1350-2389 - Lava flowing into the Pacific Ocean, Volcanoes National Park, Big Island, Hawaii

1113-104015 - Person walking through sulphur vapour, Caldera, Gran Cratere, Vulcano, Aeolian Islands, Italy

832-388961 - Aerial view, volcano, crater rim with yellow sulphur, near Frioland ao Fjallabaki, Iceland, Europe

832-388958 - Aerial view, volcanic crater with colourful sulphur deposits, near Frioland ao Fjallabaki, Iceland, Europe

832-384123 - Panoramic view of mountain landscape, peaks with orange sulphur deposits, untouched nature, Sulphur skyline, near Miette Hotsprings, Jasper National Park, British Columbia, Canada, North America

832-384124 - Panoramic view of mountain landscape, peaks with orange sulphur deposits, untouched nature, Sulphur skyline, near Miette Hotsprings, Jasper National Park, British Columbia, Canada, North America

832-387612 - Puente del Inca, old thermal bath of the sulphur spring, near Uspallata, Mendoza Province, Argentina, South America

832-387613 - Puente del Inca, rock arch and old thermal bath of the sulphur spring above the Rio de las Cuevas, near Uspallata, Mendoza Province, Argentina, South America

746-89392 - Mammoth Hot Springs with bare tree trunk in Yellowstone National Park, Wyoming.

1116-43521 - A Man Stands With A View From Sulphur Mountain Of The Canadian Rockies In Winter, Banff, Alberta, Canada

857-95805 - A blue coloured boiling hot mud pool emanates steam as the sunset colours the sky orange, in Hveraröndor Hverir Geothermal Area at Namaskard Pass, North Iceland.

857-95638 - Woman taking picture in front of Taal Volcano crater lake and mountains, Tagaytay, Batangas, Philippines

832-380925 - Krafla volcanic area, sulfur springs, Leirhnjúkur, Reykjahlíð, Mývatni, Island

1262-155 - Sulphur miner of Ijen volcano, Eastern Java, Indonesia, Southeast Asia, Asia

1262-156 - Sulphur miner of Ijen volcano, Eastern Java, Indonesia, Southeast Asia, Asia

29-5457 - Main open-pit copper-sulphur mine at Rio Tinto, Huelva, Southwest Spain, Europe

1184-1853 - Colourful springs of acid in Dallol, hottest place on earth, Danakil depression, Ethiopia, Africa

1184-1857 - Colourful springs of acid in Dallol, hottest place on earth, Danakil depression, Ethiopia, Africa

1184-986 - Smokey Iozan (sulfur mountain) active volcano area, Akan National Park, Hokkaido, Japan, Asia

1184-990 - Sulphur pieces on Iozan (sulfur mountain) active volcano area, Akan National Park, Hokkaido, Japan, Asia

1184-985 - Sulphur pieces on Iozan (sulfur mountain) active volcano area, Akan National Park, Hokkaido, Japan, Asia

857-93631 - Herbivorous,

1184-476 - Man boiling Megapode eggs in a sulphur stream of Volcano Tavurvur, Rabaul, East New Britain, Papua New Guinea, Pacific

1179-69 - Sol de Manana, a geothermal field in Sur Lipez Province in the Potosi Department, Bolivia, South America

83-12751 - Ash, rock and sulphur at the smoking summit of 3350m high volcano Mount Etna during an active phase, Mount Etna, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe

698-3036 - Visitors on a viewing platform on Sulphur Mountain summit overlooking Banff National Park, UNESCO World Heritage Site, Alberta, The Rockies, Canada, North America

832-283838 - Solfatara and boiling mud at the mountain Namafjall Iceland

832-283835 - Solfatara at the mountain Namafjall Iceland

1113-80182 - Sulphur fomaroles on White Island, North Island, New Zealand

1113-80171 - Tourists visiting sulphur fomaroles on White Island, North Island, New Zealand

1113-60310 - Pohutu Geyser, Rotorua, Whakarewarewa area, Rotorua, North Island, New Zealand

1113-55583 - Smoke above crater lake at volcano Poas National Park, Costa Rica, Central America, America

1113-36075 - Sulphur steam at the vulcono crater, Vulcano Island, Aeolian islands, Sicily, Italy

1116-25784 - Aerial view from top of Sulphur Mountain, Lake Minnewanka and Bow Valley, Banff National Park, Alberta

1116-18121 - Sulphur Mountain Gondola, Banff National Park, Alberta

1116-18125 - Sulphur Mountain gondola over pine forest, Banff National Park, Alberta

1116-18124 - Sulphur Mountain Gondola, Banff National Park, Alberta

764-3751 - Orange clouds at sunrise with sulphur paintbrush (Castilleja sulphurea) and cutleaf daisy (dwarf mountain fleabane) (gold buttons) (Erigeron compositus), San Juan National Forest, Colorado, United States of America, North America

764-3686 - Orange clouds at sunrise with cutleaf daisy (dwarf mountain fleabane) (gold buttons) (Erigeron compositus) and sulphur paintbrush (Castilleja sulphurea), San Juan National Forest, Colorado, United States of America, North America

396-4525 - View from Sulphur Mountain to Banff, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

832-10815 - Poas Volcano, national park in the central highlands of the Alajuela Province, main crater with blue water, sulphur vapour, smoke and clouds, Parque Nacional Volcan Poas, Costa Rica, Central America

796-61 - Sulphur Mountain cable cars, Banff National Park, UNESCO World Heritage Site, Rocky Mountains, Alberta, Canada, North America

796-62 - Views of Banff and the Bow Valley surrounded by Rocky Mountains from the top of Sulphur Mountain, Banff National Park, UNESCO World Heritage Site, Alberta, Canada, North America

796-64 - Views of the Chateau Lake Louise Hotel and Bow Valley from the top of Sulphur Mountain, Banff National Park, UNESCO World Heritage Site, Alberta, Canada, North America

796-65 - Two women and the Bow Valley from the top of Sulphur Mountain, Banff National Park, UNESCO World Heritage Site, Alberta, Canada, North America

796-66 - Views of Banff and the Bow Valley surrounded by the Rocky Mountains from the top of Sulphur Mountain, Banff National Park, UNESCO World Heritage Site, Alberta, Canada, North America

252-1852 - Sulphur vents, Mt. Asahidake (2290m), Daisetsuzan National Park, Hokkaido, Japan

252-1865 - Sulphur vents, Mount Asahidake, island of Hokkaido, Japan, Asia

492-2277 - View from Sulphur Mountain, Banff, Rocky Mountains, Alberta, Canada, North America

492-2278 - City of Banff from Sulphur Mountain, Alberta, Rockies, Canada, North America

125-357 - Tourists beneath the Canadian flag on Sulphur Mountain in the Banff National Park in Alberta, UNESCO World Heritage Site, Canada, North America

312-1667 - Tourists trekking, Sulphur Lake, Kawah Ijen, Ijen Plateau, island of Java, Indonesia, Southeast Asia, Asia

312-1666 - Smoke billowing out from volcano vent, Sulphur Lake, Kawah Ijen, Ijen Plateau, island of Java, Indonesia, Southeast Asia, Asia

312-1658 - Smoke billowing out from volcano vent, Sulphur Lake, Kawah Ijen, Ijen Plateau, Java, Indonesia, Southeast Asia, Asia