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The numerous boiling mud springs characterize some areas of Yellowstone Park and testify to the volcanic character of the area.
Zulfugarli, Istisu springs, Kalbajar rayon, Azerbaijan: Istisu hot springs, 'isti su' is Azerbaijani for hot water, so a common toponymic, located between the Turthun river and the forest.
Semi-thermal area, geothermal fluid. Mineral hot springs is confined to post-volcanic phase. Mineral hot springs, chemical mixture: yellow sulfur powder, white ammonium chloride, yellow iron chloride
An active geyser steams and deposits sulphur and arsenic around it, killing off the surrounding vegetation. Yellowstone.
Close-up of the earth surface in the Orakei Korako Park, Taupo, North Island, New Zealand, Oceania.\nRainbow Terrace in the Orakei Korako Geothermal Park, Taupo Volcanic Zone.
Hokkaido, Japan - October 13, 2023: mud volcano Bokke of Akan lake in Hokkaido, Japan
Bumpass Hell area of Lassen Volcanic National Park in California. Part of the Cascade Mountain Range. Dried hot springs next to the Boiling Springs Lake. Dried mud forming cracks.
Caldeira do Esguicho; Traditional furnas sweet corn cobs cooked in the geyser hot springs in bags. A typical appetizer from the island of Sao Miguel, Azores in Portugal
Jewel Geyser at Biscuit Basin on Upper Geyser Basin in Yellowstone National Park, Wyoming
Sikidang crater with the background of sulfur vapor coming out of the sulfur marsh.
Visitors get a close up view of one of more than 10,000 thermal features in Yellowstone. Research on heat-resistant microbes in the park’s thermal areas has led to medical, forensic, and commercial uses.
norris geyser basin porcelain in in Yellowstone National Park in Wyoming
Yellowstone National Park
Boiling Lake close-up, one of two biggest in the world. Perhaps the most famous hike in Dominica, it leads through Valley of desolation up to this spot, where hot sulphur \
background textures
Geysers
Big Cone is a large, prominent cone-shaped geyser with a rounded, slightly pointed top. It looks like a classic cone with a wide base that narrows upward. The surface is often covered in mineral deposits, giving it a textured, rough appearance.
Semi-thermal area, geothermal fluid. Mineral hot springs is confined to post-volcanic phase, white ammonium chloride. Thermophilic plants Fimbristulis ochotensis. Kamchatka
Geothermal pool in winter Yellowstone National Park steaming
Gas bubbles to the surface and causes the mud to fly in the air.  Waiotapu Thermal Wonderland, near Rotorua on the North Island of New Zealand.
Boiling water bubbler Geyser. Active geyser with major eruptions. Yellowstone NP, Wyoming, USA
Close up on steaming mud pot
Mud Volcano in Yellowstone National Park
Mud Volcano in Yellowstone National Park is a highly active geothermal feature located near the Yellowstone River, just north of Yellowstone Lake. This area is known for its bubbling mud pots and steam vents, which are fueled by acidic, sulfur-rich gases rising from deep within the earth. The most notable feature, the Mud Volcano itself, is a churning pool of hot, muddy water that gives off a strong smell of sulfur. It was once a large cone-shaped geyser before a powerful eruption in the late 19th century reduced it to its current, more subdued form. The area around Mud Volcano is part of the larger Hayden Valley thermal area.
Close up of mud boiling and splashing in iconic hot pots at Fountain Paint Pots in Yellowstone National Park, Wyoming in winter.
Lady Knox geyser is a major attraction of Waiotapu Thermal Park, New Zealand.
It is a protected geological space where the main attraction is the mud volcanoes, a phenomenon known as cold volcanism.
natural hot springs
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A corner of Manzanita Lake at Lassen Volcanic National Park in Shasta and Lassen counties, California LCCN2013631202.tif.tiff
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