YELLOWSTONE NATIONAL PARK, Wyoming — It was the talk of the boardwalk. Everyone had heard that there was an unusually active geyser here in the Norris Geyser Basin, near the center of the park. A sign ...

World's tallest geyser erupts once again in Yellowstone, setting new record “I wish I could tell you,” said Michael Manga, of the University of California, Berkeley, who studies geysers. “I think this ...

Grand Geyser, located in Yellowstone’s Upper Geyser Basin, is the tallest predictable geyser in the world. It erupts in breathtaking displays that can reach up to 200 feet high, lasting anywhere from ...

Grand Geyser rises above the rest in Yellowstone’s Upper Geyser Basin, erupting up to 200 feet high every 7 to 15 hours. Its long, powerful eruptions often include Turban and Vent Geysers for an ...

The tallest active geyser in the world erupted last week, though seismic data shows it was probably about a quarter the size of the previous major eruption four years ago, Wendy Stovall, deputy ...

YELLOWSTONE NATIONAL PARK — The world's largest active geyser has erupted four times in the last seven weeks, a spate of activity that has geophysicists excited about the Yellowstone National Park ...

Although there were no documented eruptions of Old Faithful in Yellowstone for a full day last week, scientists are not concerned. Turns out the ...