Old Faithful is one of the biggest icons of Yellowstone National Park! Truly, it is the world's most famous geyser and a ...

Yellowstone National Park, known for erupting geysers like Old Faithful, is home to one of earth’s largest volcanic systems, with the capacity to wreak havoc on an entire continent — and ...

BOZEMAN, Mont. -- A thermal spring near Old Faithful in Yellowstone National Park has erupted for the fourth time in the last 60 years, a park official said Thursday.

Moreover, the observation provides new constraints on the eruption dynamics and recharge process of Old Faithful.

BILLINGS – A “very powerful geyser eruption” in the Biscuit Basin thermal area of Yellowstone National Park has resulted in a closure to the site, located only minutes from Old Faithful Geyser.

About 25 geysers in Yellowstone National Park, including Old Faithful, now have sensors in their outflow channels that constantly record the temperature, and keep a continuous log of eruptions.