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 ...

In April, when Yellowstone National Park geologists made their first visit this year to the Norris Geyser Basin, they ...

A new light blue hot spring has formed in Yellowstone’s Norris Geyser Basin after months of small hydrothermal explosions.

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

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

A new hole was discovered in Yellowstone National Park in April 2025, when geologists performed routine maintenance at the ...

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

Yellowstone National Park announced Monday the discovery of a new 13-foot baby blue hot spring. It emerged with little ...

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.

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.

First named in 1871, the Grand Prismatic Spring gets its name from the distinct and brightly colored rings that surround it. The difference in water color for each ring is dependent on differences ...