Old Faithful erupts more frequently than any of ... varying from 45 to 110 minutes. An eruption lasts 1 1/2 to 5 minutes, expels 3,700 to 8,400 gallons (14,000 to 32,000 liters) of boiling water ...

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.

Yellowstone National Park, known for erupting geysers like Old Faithful, is home to one of ... do we have regions that are capable of eruption,” the magma maven explained. In other words ...