Written by Mark Stelten, deputy scientist-in-charge at the Yellowstone Volcano Observatory, the post analyzes the v olcano's ...

West Thumb Geyser Basin (WTGB), along the southwest shore of West ... which is typical of sinter-depositing alkaline-chloride ...

Yellowstone National Park was never on my bucket list. Seeing the northern lights? Yes, please. Alaska? My number one. But ...

Abyss Pool in the West Thumb Geyser Basin in Yellowstone National Park is getting hotter and changing colors. Scientists say the pool, where a human ...

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 ...

West Thumb Geyser Basin, along the southwest shore of West Thumb Basin in western Yellowstone Lake, is one of Yellowstone’s ...

Catherine Parker Old Faithful may be Yellowstone's most well-known geyser, but the Norris Geyser Basin is home to the park's oldest (thermal features are said to have been present here for more ...

Visitors hacked off pieces of geyser formations to take home as souvenirs, while hunters slaughtered the park's elk. Superintendent Langford was conspicuous by his absence, visiting Yellowstone ...

Montana’s Yellowstone Country is home to three of the five entrances to Yellowstone: the West, North, and Northeast Entrances ...

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 ...

West Thumb Geyser Basin (WTGB), along the southwest ... of sinter-depositing alkaline-chloride fluids throughout Yellowstone National Park, including those near Old Faithful.