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

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

Find out how some animals at Yellowstone National Park make fatal mistakes, and learn about the real reason why hot springs ...

It happened on Saturday morning, June 21, at the park’s Grand Prismatic Spring, Michael Poland, geophysicist with the U.S. Geological Survey and scientist-in-charge of the Yellowstone Volcano ...

But nearly all major hot springs and geysers in Yellowstone are actually neutral (pH of around ... have thin crusts at the surface that overlie boiling waters or even hotter steam. Many injuries and ...

The Grand Prismatic Spring is Yellowstone's largest hot spring and one of the largest in the world, at between 200 and 300 feet in diameter and more than 121 feet deep. Its waters are really ...

Big picture view: Grand Prismatic Spring is Yellowstone’s largest hot spring.. By the numbers: It is 200–330 feet in diameter and more than 121 feet deep. A scientist at Yellowstone, Michael ...

Several people witnessed a bison’s final moments after it fell into a hot spring in Yellowstone National Park ... The photos and videos show the spring’s steam causing low visibility in the basin, ...