Old Faithful is a geyser in Yellowstone National Park, named after its regularity in erupting hot water and steam, fed by the geothermal activity of the Yellowstone supervolcano underneath.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Old Faithful, the famed geyser in Yellowstone National Park, erupts with such captivating ...

The geyser Old Faithful was named on this day in history, Sept. 18, 1870, after an explorer noticed the eruptions were quite "faithful." It remains a popular tourist attraction.

Intriguingly, sometimes the regions near sunspots are capable of launching multiple jets in a regular pattern, akin to the “Old Faithful” geyser found at Yellowstone National Park(but at ...

Yellowstone's Upper Geyser Basin plays host to Old Faithful along with about 300 other active geysers, according to the National Park Service.

“Watch Old Faithful and other geysers erupt from the warmth of your own home through our Old Faithful and Upper Geyser Basin Livestream Webcam.” Visit go.nps.gov/yellwebcams to catch an eruption.