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 ...

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 ...

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’s Upper Geyser Basin holds one of the tallest predictable geysers, Grand Geyser, erupting up to 200 feet. Grand Geyser often performs alongside Turban and Vent Geysers, and can be counted ...

YELLOWSTONE NATIONAL PARK, Wyo. — Late last year, Jeff Carter happened upon Steamboat Geyser, the tallest active geyser in the world, just before it erupted. “It was so much louder and higher and ...

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 ...

Tourists traveling by plane over Yellowstone National Park on Thursday were treated to a rare and magnificent view of the world’s tallest active geyser shooting steam 400-plus feet skyward. The ...

Yellowstone is a dynamic geologic system—the one constant is change. This is demonstrated daily by hydrothermal activity ...