When Yellowstone National Park staff arrived to work on Saturday, June 13, they noticed something odd: the Firehole River ...

Yellowstone National Park geologists have confirmed that a small hydrothermal explosion that occurred earlier this month formed a new thermal pool.

Just after 5:09 a.m., on Saturday, June 13, monitoring equipment in Biscuit Basin registered anomalous activity, including ...

The pool, measuring 21 x 17 feet, formed near newly opened vents and spouted water up to 30 feet high Experts say it's unclear if ...

When Yellowstone National Park staff arrived to work on Saturday, June 13, they noticed something odd: the Firehole River flowing ...