Mammoth Hot Springs in northern Yellowstone National Park sits on the border of Wyoming and Montana. It is a place you have ...

Geologically speaking, things are always changing at Yellowstone — especially in hydrothermal areas. It’s simply the nature of the complex hydrothermal system overlying one of the planet’s largest ...

Catherine Parker Sitting just south of the park's north entrance in Gardiner, Montana, Mammoth Hot Springs is one of the park's more unique attractions. One of its most striking geological ...

Learn more about this new hydrothermal feature that could be connected to one from Yellowstone’s past.

"While driving south from Mammoth Hot Springs towards Norris Geyser Basin early on Aug. 5 last summer, a park scientist noticed a billowing steam column through the trees and across a marshy ...

Geologically speaking, things are always changing at Yellowstone—especially in the hydrothermal areas. It’s simply the nature ...

If you wish to explore the other hot springs in the area, head southwest on the trail and you should find three more springs scattered throughout the valley. When you think of a visit to Mammoth ...

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On the site of old Fort Yellowstone, near the steaming travertine terraces of Mammoth Hot Springs, 5 miles south of the north entrance to the park, this old-fashioned hotel of solid pillars and ...

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