According to the Yellowstone Volcano Observatory, it’s probable that this new hydrothermal feature is connected to activity ...

The explosion even changed the shapes of the Black Diamond and Black Opal pools, NPS said. YELLOWSTONE SEISMIC ... occurred in 1989 at Porkchop Geyser. The last hydrothermal explosion at Biscuit ...

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 ...

Yellowstone National Park’s popular Biscuit ... to steam in the “shallow hydrothermal system beneath Black Diamond Pool” and not by volcanic activity. The explosion appeared dark because ...

The world is waking back up again—and in the case of Yellowstone National Park's black bears, it literally is! Aside from their world-famous geysers, Yellowstone is renowned for its diverse ...

Catherine Parker More than its star attraction (Old Faithful), the Upper Geyser Basin boasts not only the largest concentration of geysers in the park, but also in the entire world (Yellowstone is ...

Lying five miles beneath the surface of Yellowstone National Park in Wyoming ... have discovered a newly opened volcanic vent in Norris Geyser Basin. The vent is at the foot of a rhyloite ...