Yellowstone was the first national park ever ... these million-plus acres of wetlands harbour nearly 300 types of fish, 360 species of birds, 27 kinds of snakes and about 750 seed-bearing plants ...

Though the volcano’s magma chambers could hold enough material for a caldera-forming event, none of them are likely to erupt ...

Yellowstone National Park is a popular destination for geology field trips. It’s easy to see why—the dynamic landscape ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Richard Tollo, emeritus professor ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Cathy Whitlock, Regents Professor ...

The park's largest recorded earthquake, a magnitude 6, occurred on June 30, 1975, along the north-central boundary of Yellowstone Caldera, a few miles southeast of Norris Geyser Basin. No injuries ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Ninfa Bennington, geophysicist ...

“We suggest that the locus of future rhyolitic volcanism has shifted to northeast Yellowstone Caldera,” noted Bennington, pinpointing a new center for potential volcanic activity in Yellowston ...

A spectacular highlight for snow-coach passengers in Yellowstone National Park is to ... (Click here to view that clip.) Adult bison, which weigh between 1,000 and 2,000 pounds, can run 30 mph ...

Last week we featured footage showing bison stampeding toward a snow coach in Yellowstone National Park, as tourists watched with heightened concern. To their relief, the bison navigated around ...

The “Yellowstone” of “Yellowstone to Yosemite With Kevin Costner” is more an allusion to Mr. Costner’s very popular TV drama than to the national park. It is Yosemite that is the focus ...