The blue water spring is about 13 feet in diameter and 1 foot below the rim, USGS said. The water in the pool was measured at ...

The dominant rock type in the Yellowstone region is rhyolite, and that is very rich in silica. As hot water circulates underground, it can dissolve that silica and bring it to the surface, where it is ...

A hydrothermal explosion has created a 13-foot blue water feature in Yellowstone National Park. The explosion appears to have ...

Learn about the new hydrothermal feature that appeared last winter in Yellowstone National Park, possibly on Christmas Day.

Located in the Yellowstone’s Porcelain Basin, the new thermal feature is believed to have appeared on Christmas Day ...

Last April, geologists conducting routine maintenance at temperature logging stations in Yellowstone National Park’s Norris ...

More geological changes are occurring at Yellowstone National Park, as another hole forms in one of the park's basins.

A routine temperature check at the Norris Geyser Basin in Yellowstone National Park led geologists to discover a new blue ...

Yellowstone National Park is home to a huge and varied range of animal life but in recent days, many creatures appear to be ...

A 13-foot-wide hot pool formed over the winter in one of Yellowstone’s most active areas, and it could offer new insights into the park's ever-changing geothermal systems.

The incident occurred at Grand Prismatic Spring near Old Faithful as tourists were enjoying a close-up view of the famous and popular hot spring.

The bison died in the boiling waters of the Grand Prismatic Spring. This happens from time to time, but usually not in front of a crowd.