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Bumpass Hell, the largest and most popular hydrothermal area, in Lassen Volcanic National Park, California
Noboribetsu Jigokudani or Hell Valley above the town of Noboribetsu Onsen, hot steam vents, sulfurous streams ,volcanic activity.
Beautiful thermal lake view in the Yellowstone National Park in Wyoming, USA
Black Pool hot spring with Yellowstone Lake in the background
Ooyunuma in Noboribetu
At the end of the hike to the crater rim of Chaiten volcano there is a great view into the caldera
A lake surrounded by aspen and pine trees in autumn. Located in Sylvan Lake State Park in Colorado
Bumpass Hell in Lassen Volcanic National Park
It is a sunny autumn day in the National Park of Mont Avic. The larch trees are changing their colours. In the background, beyond the lakes, the Monte Rosa massif and the Matterhorn.
Majestic Yellowstone lake
Hot springs are the most common hydro-thermal features at Yellowstone National Park.  They vary from frothing mocha-like boiling water to clear and calm pools of tremendous depth.
Chile, San Pedro de Atacama, Tatio Geysers in Atacama Desert
New Zealand’s Volcanic Lake
Orange-blue Colored Black Sand Basin lake in Yellowstone National Park, Wyoming, USA.Nikon D3x
Blue lake at St Bathans with fog drifting over the hills in winter, Central Otago.
Thermal water Rotorua, New Zealand
Reflection on a mountain lake
Nuorilang Waterfall at Jiuzhaigou National Park Sichuan, China
Blue Star Spring in Yellowstone National Park, Wyoming.
Located in Yellowstone National Park, Wyoming, the largest hot spring in the United States and third largest in the world.  The amazing colors are actually varying species of heat loving microbes in the pools - each having a different color and existing at a different temperature.
a scenic landscape in Yellowstone National Park Wyoming in winter
Opalescent Thermal pool in Black Sand Basin  of the Upper Geyser Basin, Yellowstone National Park. The specific colours of geysers derive from the fact that despite the apparently harsh conditions, life is often found in them (and also in other hot habitats) in the form of thermophilic prokaryotes.
hot spring in yellowstone national park
Bumpass Hell, the largest and most popular hydrothermal area, in Lassen Volcanic National Park, California
Sipoholon Hot Springs are hot springs in Tapanuli. This sulfur-containing bath was formed due to the eruption of Mount Martimbang
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.
Fumarole and geyser environment in Yellowstone National Park
Black Diamond Pool Geysers at Yellowstone National Park. Biscuit Basin Trail.
Yellowstone National Park, Park County, Wyoming, United States. Along the Artists’ Paintpots Trail.
Yellowstone NP nature
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