A new, rapidly growing hole filled with icy blue water has appeared in Yellowstone National Park's Norris Geyser Basin, ...

Yellowstone volcano eruption simulations show an unexpected blast would produce ash fallout from the Northwest US down to the southern tip of Florida. Volcanic ash fallout of more than 39.4 inches ...

A surprise eruption in Yellowstone National Park shot steam, water and dark-colored rock and dirt an estimated 100 feet into the sky and sent people running for safety.

A wrecked boardwalk and debris are pictured after the Yellowstone Park explosion, with the blast itself seen in the inset. Some of the rocks thrown out by the explosion were around 3 feet wide.

The webcam captured a small eruption at Black Diamond Pool in Yellowstone's Biscuit Basin − just north of Old Faithful − at 8:39 p.m. MDT on May 31, according to the U.S. Geological Survey ...

The webcam captured a small eruption at Black Diamond Pool in Yellowstone's Biscuit Basin − just north of Old Faithful − at 8:39 p.m. MDT on May 31, according to the U.S. Geological Survey.

CHEYENNE, Wyo. (AP) — A surprise eruption in Yellowstone National Park shot steam, water and dark-colored rock and dirt high into the sky Tuesday and sent sightseers running for safety. The ...

CHEYENNE, Wyo. — A surprise eruption that shot steam, water and dark-colored rock and dirt dozens of feet into the sky Tuesday sent people running for safety in Yellowstone National Park. The ...

CHEYENNE, Wyo. (AP) — A surprise eruption in Yellowstone National Park shot steam, water and dark-colored rock and dirt high into the sky Tuesday and sent sightseers running for safety. The ...