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Hverir geothermal fields at the foot of Namafjall mountain, Myvatn Lake area, Iceland, Polar Regions





Small river flowing through the colourful hills and rhyolite mountains of the geothermal area of Kerlingarfjoell Glacier in t...
Small river flowing through the colourful hills and rhyolite mountains of the geothermal area of Kerlingarfjoell Glacier in the interior highlands of Iceland, Europe





Tourists are silhouetted against the steam from a geothermal area in Yellowstone National Park, Wyoming. Devastation from a f...
Tourists are silhouetted against the steam from a geothermal area in Yellowstone National Park, Wyoming. Devastation from a forest fire can be seen in the background.





May 9, 2010 - Eruption of Strokkur Geysir, Iceland. One of several geysers in Haukadalur valley. KW: Geothermal area, Geyser ...
May 9, 2010 - Eruption of Strokkur Geysir, Iceland. One of several geysers in Haukadalur valley. KW: Geothermal area, Geyser Basin, Fountain geyser





Detail of structures that are formed by coloured minerals, algae and water in the geothermal area of Hveravellir, Iceland, Eu...
Detail of structures that are formed by coloured minerals, algae and water in the geothermal area of Hveravellir, Iceland, Europe





Eruption of the Old Faithful geyser, Upper Geyser Basin, geothermal springs in Yellowstone National Park, Wyoming, United Sta...
Eruption of the Old Faithful geyser, Upper Geyser Basin, geothermal springs in Yellowstone National Park, Wyoming, United States of America, USA





Yellowstone Landscape. Dead trees stands in front of the Yellowstone landscape. You can see mountains in the background. Alth...
Yellowstone Landscape. Dead trees stands in front of the Yellowstone landscape. You can see mountains in the background. Although it's only Fall, snow can be seen on the top of the mountains.





Solfataras, fumaroles, mud pools, sulfur and other minerals, steam, Hveraroend geothermal area, Námafjall mountains, Mývatn a...
Solfataras, fumaroles, mud pools, sulfur and other minerals, steam, Hveraroend geothermal area, Námafjall mountains, Mývatn area, Norðurland eystra, the north_east region, Iceland, Europe





September 12, 2009 - Chromatic Pool Hot Spring, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National...
September 12, 2009 - Chromatic Pool Hot Spring, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.





Sapphire Pool, Biscuit Geyser Basin. Yellowstone National Park, Wyoming, United States of America.





Black Opal Spring, Biscuit Basin, Yellowstone National Park, Wyoming, Idaho, Montana, America, United States





Outdoor geothermal swimming pool and power plant at the Blue Lagoon, Iceland, Polar Regions





The setting sun reflecting on Firehole Lake geothermal area and boardwalk suggests a boiling pool of magma below





Excelsior Geyser Crater, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America U.S.A., Nor...
Excelsior Geyser Crater, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America U.S.A., North America





Outlet of the Pinwheel Geyser, Porcelain Basin, Norris Geyser Basin, colored thermophilic bacteria, microorganisms, geysers, ...
Outlet of the Pinwheel Geyser, Porcelain Basin, Norris Geyser Basin, colored thermophilic bacteria, microorganisms, geysers, geothermal springs in Yellowstone National Park, Wyoming, United States of America, USA





Winter landscape, mineral pool at Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United ...
Winter landscape, mineral pool at Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America





Geothermal Steam Flows from Hot Springs and Thermal Vents in the Maori Village of Ohinemutu, a suburb of Rotorua, north islan...
Geothermal Steam Flows from Hot Springs and Thermal Vents in the Maori Village of Ohinemutu, a suburb of Rotorua, north island, New Zealand





Founded in the 18th century, the Terra Nostra garden at Furnas is one of the most beautiful and exotic gardens in the world. ...
Founded in the 18th century, the Terra Nostra garden at Furnas is one of the most beautiful and exotic gardens in the world. Sao Miguel, Azores islands, Portugal





Geothermal region of Gunnuhver in southern Iceland with steam from the countless holes and fractures in the earth´s crust, Ic...
Geothermal region of Gunnuhver in southern Iceland with steam from the countless holes and fractures in the earth´s crust, Iceland, Europe





Yellowstone National Park, Wyoming, USA. The wonderful geothermical park in the north of the United states





Hverir geothermal fields at the foot of Namafjall mountain, Myvatn lake area, Iceland, Polar Regions





Solfataras, fumaroles, sulfur and other minerals, steam, Hveraroend geothermal area, Námafjall mountains, Mývatn area, Norður...
Solfataras, fumaroles, sulfur and other minerals, steam, Hveraroend geothermal area, Námafjall mountains, Mývatn area, Norðurland eystra, the north_east region, Iceland, Europe





Solfatara field, Hveraroend or Hverir on Námafjall, Krafla volcanic area in the Myvatn area, northern Iceland, Iceland, Europ...
Solfatara field, Hveraroend or Hverir on Námafjall, Krafla volcanic area in the Myvatn area, northern Iceland, Iceland, Europe





There are several undergound coal mines In Bulgaria still operational Coals are being used to generate electricty in the powe...
There are several undergound coal mines In Bulgaria still operational Coals are being used to generate electricty in the powerstations nearby the mine The coals provide almost 100 of the national electricty demands of Bulgaria Most mines are privatised Wo





Sol de Manana geothermal field, Manana in Andina Eduardo Abaro National Park, Altiplano, Potosi, southern Bolivia, South Amer...
Sol de Manana geothermal field, Manana in Andina Eduardo Abaro National Park, Altiplano, Potosi, southern Bolivia, South America





Mineral deposits at a hot spring, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA





USA, Wyoming, Yellowstone National Park, Elk Park, Yellow algae growing in thermal water of Cupric Spring





September 12, 2009 - Steam rising over Midway Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, W...
September 12, 2009 - Steam rising over Midway Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.





USA, Wyoming, Yellowstone National Park, Geyser Creek Thermal Area, Geyserite deposits along scalloped edge of hot spring





West Thumb Geyser Basin, Yellowstone National Park, Wyoming, United States of America (USA), North America





Maritsa Iztok is the largest coalmine in Bulgaria The coals are located 60 meter underground and the layer of coal is around ...
Maritsa Iztok is the largest coalmine in Bulgaria The coals are located 60 meter underground and the layer of coal is around 20 meter The coals are used for generating electricity by burning them The coalmine provides 85 of the country´s energy The US is





Grand Prismatic Spring with colorful algae and approaching storm clouds, Midway Geyser Basin, Yellowstone National Park, Wyom...
Grand Prismatic Spring with colorful algae and approaching storm clouds, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA





Japanese macaques or snow monkeys Macaca fuscata bathing in a hot spring, winter, Jigokudani Monkey Park, Nagano prefecture, ...
Japanese macaques or snow monkeys Macaca fuscata bathing in a hot spring, winter, Jigokudani Monkey Park, Nagano prefecture, Japan, Asia





Detailed view of the discoloration caused by bacteria and algae on a geyser, Geyser Hill, Old Faithful Area, Yellowstone Nati...
Detailed view of the discoloration caused by bacteria and algae on a geyser, Geyser Hill, Old Faithful Area, Yellowstone National Park, Wyoming, USA





September 12, 2009 - Morning Glory Pool Hot Spring, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone Nati...
September 12, 2009 - Morning Glory Pool Hot Spring, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.





Black Sand Basin, Yellowstone National Park, Wyoming, United States of America (USA), North America





Water flowing from a hot spring, West Thumb Geyser Basin, Yellowstone National Park, Wyoming, USA





Hot springs and snow_capped Rhyolite Mountains, Hveradallir high temperature region, Kerlingarfjoell, highlands, Iceland, Eur...
Hot springs and snow_capped Rhyolite Mountains, Hveradallir high temperature region, Kerlingarfjoell, highlands, Iceland, Europe





Steam from thermal hot spring rises at sunset, Fountain Paint Pot area, Yellowstone National Park, Wyoming





Boiling mud pools in the geothermal Namaskard Volcanic area, Iceland The area is characterised by boiling mud-bogs and so cal...
Boiling mud pools in the geothermal Namaskard Volcanic area, Iceland The area is characterised by boiling mud-bogs and so called solfatoras





Bathing in the hot springs, Palea Kameni, Santorini, Cyclades, Aegean Sea, Greece, Europe





Steam venting from White Dome Geyser and autumn storm clouds at sunrise, Yellowstone National Park, Wyoming





The basin of hot sulphur spring in Bagno Vignoni and Hotel Le Terme at night, Orcia Valley, Tuscany, Italy, Europe





Sol de Mañana is a geothermal field in Sur Lípez Province in the Potosi Department of south-western Bolivia. It extends over ...
Sol de Mañana is a geothermal field in Sur Lípez Province in the Potosi Department of south-western Bolivia. It extends over 10 km², between 4800m and 5000m height





Aerial view into the caldera of Vulcano, a small volcanic island in the Aeolian archipelago. From here we can see Lipari on t...
Aerial view into the caldera of Vulcano, a small volcanic island in the Aeolian archipelago. From here we can see Lipari on the horizon, and Stromboli, the island furthest away and on the right.





Lower Falls, Yellowstone National Park, Wyoming, USA. The wonderful geothermical park in the north of the United states





There are several undergound coal mines In Bulgaria still operational Coals are being used to generate electricty in the powe...
There are several undergound coal mines In Bulgaria still operational Coals are being used to generate electricty in the powerstations nearby the mine The coals provide almost 100 of the national electricty demands of Bulgaria Most mines are privatised Wo





Loburu Hot Springs, Lake Bogoria, Rift Valley, Kenya.A small geyser in Loburu Hot Springs, on the shore of Lake Bogoria.





USA, Wyoming, Yellowstone National Park, Norris Geyser Basin, Steamboat Geyser, world's largest geyser in major eruption





Maritsa Iztok is the largest coalmine in Bulgaria The coals are located 60 meter underground and the layer of coal is around ...
Maritsa Iztok is the largest coalmine in Bulgaria The coals are located 60 meter underground and the layer of coal is around 20 meter The coals are used for generating electricity by burning them The coalmine provides 85 of the country´s energy The US is





Road underneath a bridge of pipes and pipelines carrying hot water from the Kroefluvirkjun geothermal power plant, geothermal...
Road underneath a bridge of pipes and pipelines carrying hot water from the Kroefluvirkjun geothermal power plant, geothermal area of the Leirhnjukur fissure at the Krafla volcano, north Iceland, Iceland, Europe





People standing against a steamy backdrop at Midway Geyser Basin, Yellowstone National Park, Wyoming, United States





Brawley, California - A sign warns of cancer-causing chemicals at a well for a geothermal energy plant in California´s Imperi...
Brawley, California - A sign warns of cancer-causing chemicals at a well for a geothermal energy plant in California´s Imperial Valley





Tourists appear as tiny specks near the roaring steam vents on New Zealand´´s offshore active volcano, White Island





Mountain lake near the Krafla geothermal area, Myvatn area, northern Iceland, Iceland, Europe





Blue water pool, Bláhver hot spring, Hveravellir high_temperature or geothermal region, Highlands, Iceland, Europe





Mountain lake near the Krafla geothermal area, Myvatn area, northern Iceland, Iceland, Europe





"GRAND PRISMATIC SPRING". Manantial de agua caliente del PARQUE NACIONAL DE YELLOWSTONE (YELLOWSTONE NATIONAL PARK). Declarad...
"GRAND PRISMATIC SPRING". Manantial de agua caliente del PARQUE NACIONAL DE YELLOWSTONE (YELLOWSTONE NATIONAL PARK). Declarado Patrimonio de la Humanidad. Estados Unidos.





Geysers in extensive geothermal field in Andean foothills, Atacama Desert, Andes Mountains, Chile





After passing Neptune´s Bellows, entrance point to Port Foster Bay, a vessel breaks the packed ice on the surface. Boat shape...
After passing Neptune´s Bellows, entrance point to Port Foster Bay, a vessel breaks the packed ice on the surface. Boat shape can be seen on the ice.





Japanese macaques or snow monkeys Macaca fuscata bathing in a hot spring, winter, Jigokudani Monkey Park, Nagano prefecture, ...
Japanese macaques or snow monkeys Macaca fuscata bathing in a hot spring, winter, Jigokudani Monkey Park, Nagano prefecture, Japan, Asia





Sapphire Pool, Biscuit Geyser Basin. Yellowstone National Park, Wyoming, United States of America.





Colorful mineral precipitates in the Black Sand Geyser Basin in Yellowstone National Park. Wyoming, USA





February 11, 2008 - Dallol geothermal area, egg-shaped fumarole deposits formed in salt deposits of brine hot springs, Danaki...
February 11, 2008 - Dallol geothermal area, egg-shaped fumarole deposits formed in salt deposits of brine hot springs, Danakil Depression, Ethiopia.





A girl bathing in the Blue Lagoon with mountains and dramatic cloudy sky at the background, Geothermal lake, Iceland





November 2007 - Bursting mud bubble, mud pools, Wai-O-Tapu Geothermal area, Taupo Volcanic Zone, New Zealand.





Maritsa Iztok is the largest coalmine in Bulgaria The coals are located 60 meter underground and the layer of coal is around ...
Maritsa Iztok is the largest coalmine in Bulgaria The coals are located 60 meter underground and the layer of coal is around 20 meter The coals are used for generating electricity by burning them The coalmine provides 85 of the country´s energy The US is





Boiling mud from vents and mudpots in Hverageroi, Iceland. Hverageroi is a small town in the south of Iceland located 45 km t...
Boiling mud from vents and mudpots in Hverageroi, Iceland. Hverageroi is a small town in the south of Iceland located 45 km to the east of Reykjav?k, Iceland. A large earthquake on May 30, 2006 opened up the earth creating a series of vents and fumaroles of bubbling mud and steam.





Petrified tree in New Blue Spring Terrace, limestone sinter terraces, steaming geysers, hot springs, Mammoth Hot Springs Terr...
Petrified tree in New Blue Spring Terrace, limestone sinter terraces, steaming geysers, hot springs, Mammoth Hot Springs Terraces in Yellowstone National Park, Wyoming, United States of America, USA





Geothermally active area around Paliochori Bay (alt. spellings: Paleochori / Paleohori / Paliohori), Milos Island, Greece. Im...
Geothermally active area around Paliochori Bay (alt. spellings: Paleochori / Paleohori / Paliohori), Milos Island, Greece. Image shows hydrothermally altered red and yellow cliffs with fresh fumarolic deposits at their base.





Hiker resting on a trail watching the Rhyolite Mountains, Hveradallir high temperature area, Kerlingarfjoell, highlands, Icel...
Hiker resting on a trail watching the Rhyolite Mountains, Hveradallir high temperature area, Kerlingarfjoell, highlands, Iceland, Europe





Rainbow Cascade, hot spring and sinter terrace which gets its colour from hot_water algae, geothermal area of Orakei Korako, ...
Rainbow Cascade, hot spring and sinter terrace which gets its colour from hot_water algae, geothermal area of Orakei Korako, also called Hidden Valley, Orakei Korako, Waikato, North Island, New Zealand





Hydrothermal Explosions at Rehai Geothermal Field, Tengchong Dire Huoshan National Park, Tengchong, Baoshan, Yunnan Province,...
Hydrothermal Explosions at Rehai Geothermal Field, Tengchong Dire Huoshan National Park, Tengchong, Baoshan, Yunnan Province, China





Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America





Puente del Inca, tourist attraction, natural stone arch formed through erosion, the rocks are yellowish in colour because of ...
Puente del Inca, tourist attraction, natural stone arch formed through erosion, the rocks are yellowish in colour because of sulfurous water hot springs, Argentine Andes near Mendoza, Argentina, South America





Sol de Manana geothermal field, Manana in Andina Eduardo Abaro National Park, Altiplano, Potosi, southern Bolivia, South Amer...
Sol de Manana geothermal field, Manana in Andina Eduardo Abaro National Park, Altiplano, Potosi, southern Bolivia, South America





Cistern Spring Geyser, Back Basin, Norris Geyser Basin, geysers, geothermal springs in Yellowstone National Park, Wyoming, Un...
Cistern Spring Geyser, Back Basin, Norris Geyser Basin, geysers, geothermal springs in Yellowstone National Park, Wyoming, United States of America, USAational Park, National Park, Wyoming, United States of America, USA





Geothermal stream and mineral deposits at Midway Geyser Basin, Yellowstone National Park, Wyoming





Maritsa Iztok is the largest coalmine in Bulgaria The coals are located 60 meter underground and the layer of coal is around ...
Maritsa Iztok is the largest coalmine in Bulgaria The coals are located 60 meter underground and the layer of coal is around 20 meter The coals are used for generating electricity by burning them The coalmine provides 85 of the country´s energy The US is

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