Old Faithful erupts more frequently than any of the other big geysers, although it is not the largest or most regular geyser in the park. Its average interval between eruptions is about 76 minutes ...

West Thumb Geyser Basin (WTGB), along the southwest ... including those near Old Faithful. In some areas at WTGB, hydrothermal fluids have boiled at depth, releasing vapor-dominated fluids ...

The West Thumb Geyser Basin is located ... and has 141 miles of shoreline. Old Faithful - Old Faithful is one of the big icons of Yellowstone National Park. Mud Volcano - Just up the road from ...

U.S. News Insider Tip: Some visitors, especially kids, might have respiratory discomfort at Norris Geyser Basin, as the sulfur smell can be strong. – Catherine Parker Old Faithful may be ...

Steamboat is the world’s tallest active geyser, but unlike Old Faithful, its eruptions are completely unpredictable. Now, a new analysis suggests that at least one recent Steamboat eruption got ...

The service closed the area, a few miles from the Old Faithful geyser. A US Geological Survey ... the "rapid ejection of boiling water, steam, mud, and rock fragments". They can reach heights ...

At WTGB, an array of red, orange, pink, and green thermophilic bacteria are common along drainage channels, on the sinter ...

A woman suffered severe burns on her leg after hiking off-trail in Yellowstone National Park and falling into scalding water in a thermal area near the Old Faithful geyser, park officials said.

U.S. News Insider Tip: Escape the crowds directly in front of Old Faithful and enjoy the geyser's eruption from the second-floor outdoor balcony of the Old Faithful Inn, another national treasure.