In some past years, Steamboat Geyser at Yellowstone National Park has erupted dozens of times. This year, the massive geyser hasn’t had a major eruption since Feb. 3. Experts are stumped, and do not ...

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 ...

Geyser watchers and park visitors are amused by Steamboat’s spectacular eruptions that can shoot water, steam, mud, and rock 300 feet or more into the air. The world’s tallest geyser — Steamboat ...

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 ...

The world’s tallest geyser — Steamboat Geyser in Yellowstone National Park — sprang to life this week for the first time in several months. It reportedly began erupting shortly after 8:30 a.m. on ...