A diagram of the reservoir beneath Old Faithful created by scientists using seismographs University of Utah You Might Also Like Climate Change Could Make Yellowstone's Famous Geyser Less Faithful ...

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.

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

Old Faithful, the famous geyser in Yellowstone National Park, may go silent after erupting continuously for nearly 800 years, experts have discovered.

The USGS team used radiocarbon dating to identify the age of 13 wood samples they recovered from Old Faithful's mound. The preserved remains suggest that trees grew for several decades on the site ...

For those not making a trip to the park this winter, there’s a live stream you can watch while #ParkedAtHome. The stream shows the Old Faithful and other geysers that the 3,500-square-mile ...