Scientists are monitoring a city of Chicago-sized swath of rising ground at the northern volcanic rim of the Yellowstone ...

The Steamboat Geyser at Yellowstone National Park can spout 300 feet of scalding water into the air, a feature of the world's tallest active geyser. That is known. What isn't known is why is the ...

The earth's rumbling beneath Yellowstone, but don’t worry; scientists are keeping a close eye on that supervolcano and its ...

Melissa Block talks to a Yellowstone park visitor who was lucky enough to see Steamboat Geyser erupting for the first time in eight years. Yellowstone Geyser Erupts After Years Of Silence MELISSA ...

YELLOWSTONE NATIONAL PARK, Wyo. — Late last year, Jeff Carter happened upon Steamboat Geyser, the tallest active geyser in the world, just before it erupted. “It was so much louder and higher and ...

YELLOWSTONE NATIONAL PARK — The world's largest active geyser has erupted four times in the last seven weeks, a spate of activity that has geophysicists excited about the Yellowstone National Park ...

(AP) Old Faithful it’s not. Yellowstone National Park’s Steamboat Geyser the world’s tallest has erupted for the first time in more than eight years. Park geologist Hank Heasler (HESS-ler) says ...