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Lightning strikes above the Fan and Mortar geysers in Yellowstone's Upper Geyser Basin. Geysers are formed when underground water meets superheated rock and blasts back out through a narrow hole.

Cinder Pool. Elk Pool. Hydrophane Springs. The Reservoir. These are all thermal features in the backcountry of the dynamic ...

Giant viruses dating back 1.5 billion years were found in Yellowstone's geothermal springs, which scientists claim could reveal the conditions under which life formed on Earth. The viruses are ...

If you want to view Yellowstone's geysers sans crowds, then trek to the Lone Star Geyser. Lone Star Geyser lives up to its name because unlike many other geothermal areas in the park, which are ...

More than a third of Yellowstone, including Grand Prismatic Spring, sits within the caldera of a giant, ancient ... the Firehole River in the Upper Geyser Basin, snow melts faster, and green ...

Popular campgrounds include Madison Campground, Giant Village Campground ... Whether you’re drawn to the geysers and wildlife ...

Home to more than 2.2 million acres, hundreds of geysers and waterfalls, as well as Yellowstone Lake – the ... Rock Garden and Sleeping Giant, and pass sights such as Devil's Slide and the ...

100 Spring Plain in Norris Geyser Basin, Yellowstone National Park. The area is frequently flooded and impassable. (Courtesy of Lauren Harrison) Cinder Pool. Elk Pool. Hydrophane Springs.