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Golovnin is a caldera located in the southern part of Kunashir Island, Kuril Islands, Russia. It is the southernmost volcano of the Kuril Islands.
Jigokudani valley, active volcano in Noboribetsu, Hokkaido, Japan
A beautiful rural landscape seen from the mountain
A photo of mountains and boulders, Western Cape, South Africa
large depression in the terrain with snow in the mountains caused by the explosion of a mine in the First World War
Hot river at Geothermalatea in  the Haukadalur valley, east of Reykjavík, Iceland.
Great view of Adatara mountain ridge
ABACI Fairy Chimneys in KIZILCAHAMAM, Ankara
Turquoise water travertine pool terrace at pamukkale
Travertine terraces made from the hot springs at Pamukkale National Park, leaving deposits of calcium. Pamukkale means cotton castle in Turkish and is in the province of Denizli in southwestern Turkey.
Tangkuban perahu is an active volcano at Bandung Indonesia
View of tufa formation on the bank of Mono Lake. Tufa is a variety of limestone formed when carbonate minerals precipitate out of water in unheated rivers or lakes.\n\nTaken at Mono Lake, California, USA
a dragon eye created by the nature.
Beautiful geological rock formations around the Fossil Exhibit Trail in Badlands National Park in South Dakota USA
The overburden of potash mining in the Werra Valley
Aerial view of mountain rock residue from Black Lake quarry during summer day
Karst landscape in China
Mammoth Hot Springs in Yellowstone National Park
Exotica of Blue and Green Kaolin Lake in Bangka, Bangka Belitung, Indonesia. This lake is a former tin mining excavation area which is widely found on Bangka Island.
Geothermal area in  the Haukadalur valley, east of Reykjavík, Iceland.
The beautiful scenery of the Geumgang Grand Canyon of Mt. Baekdu(Mt. Changbaek) made of volcanic rocks
Aerial view of white sand  beach and sea in Kaliningrad region.
on the top of the mountain
Aksaray, Turkey-May 18, 2014: Rock formations in Ihlara Valley. There are many early Christian churches and chapels in the Ihlara Valley. Its name in historical sources is Peristremma.
Sipoholon Hot Springs are hot springs in Tapanuli. This sulfur-containing bath was formed due to the eruption of Mount Martimbang
Travertine terraces made from the hot springs at Pamukkale National Park, leaving deposits of calcium. Pamukkale means cotton castle in Turkish and is in the province of Denizli in southwestern Turkey.
Crystals of iron sulfate, toxic waste near abandoned pyrite mine
Volcanic geothermal landscape which consists of chalk, sulfur and algae at thermal springs in volcanic surroundings. The picture is taken at the Sipoholon hot springs in the northern part of Sumatra
View to Hell Valley with volcano gas. Plateau Murodo, the highest point of Tateyama Kurobe Alpine Route. Japan.
The wilderness of Cape Point National Park, Western Cape, South Africa
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