Discovered in 1870 by the Washburn Expedition, Old Faithful geyser was named for its frequent and somewhat predictable eruptions, which number more than a million since Yellowstone became the ...

The results of this work suggest that Old Faithful's deeper plumbing system is approximately vertical between about 65 and 260 feet deep and is offset by 65 feet southwest of the geyser vent.

June 3 -- The Old Faithful Geyser in Yellowstone National Park, Wyo., is a steamy, natural wonder your family will remember for a lifetime. Up to 8,400 gallons of boiling water shoot some 150 feet ...

With Old Faithful dutifully checked off, skip the single-file trudging around Upper Geyser Basin. Instead, drive about one hour (30 miles) north to Norris Geyser Basin.

Old Faithful is ranked #2 out of 17 ... the boardwalks around the perimeter or you can hike the 1.6-mile out-and-back Observation Point trail for a bird's-eye view of the Upper Geyser ...

During Old Faithful’s peak tourist season, an estimated 2,000 people come to see the geyser go off. That’s 2,000 people per eruption. The geyser spews every 60 to 110 minutes.

Visitors at Yellowstone National Park got to see a bison stand right between them and the view of Old Faithful as the geyser erupted, video shows. The video shows the bison is completely unfazed ...

With Old Faithful dutifully checked off, skip the single-file trudging around Upper Geyser Basin. Instead, drive about one hour (30 miles) north to Norris Geyser Basin.

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Sin-Mei Wu, Jamie Farrell, and ...

During peak summer months, an estimated 2,000 people stuff into the stadium seating at Old Faithful as the park’s most predictable geyser spouts boiling water up to 17 stories high. Not 2,000 ...