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 ...

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 ...

Driving the Grand Loop Road in Yellowstone National Park is the best way to see everything that this beautiful place has to ...

The Civil Grand Jury released their annual Final Reports on July 7 with a section focused on investigation into recharging ...

I think our ancestors would be proud because this is what they’ve been fighting for,” said Tasia Linwood, a 15-year-old ...

The Sonoma County Farm Bureau and others have major concerns about future water flows, but Sonoma Water officials say they’re ...

One example is the 2013 Big Thompson Canyon flood, which killed nine people and destroyed nearly 2,000 homes northwest of Denver.

It doesn't take a safari or a remote jungle trek to witness wild animals in their natural settings. Across the U.S., ...

Under the Winters Doctrine of 1908, the Supreme Court ruled that when the federal government forced native Americans onto ...

Brian Wheeler, director of Save Wild Trout, recently documented extensive algae blooms on the Big Hole, Jefferson and Boulder ...

Sand scorpions, nocturnal hunters who spend their days in burrows, also leave distinct tracks.

Alpine rain and snow take much longer to percolate into western U.S. streams than previously thought, adding complexity to long-standing hydrologic models.