Over the Sierra crest — about 150 miles to the east of Manteca, Oakdale, and Turlock — is one of the world’s largest active ...

The Mystic Lake Hydroelectric Project, located 75 miles southwest of Billings on West Rosebud Creek, went online in March 1925.

Rescuers followed footprints in the snow to find a weary and lost person after their cellphone died on Mount St. Helens over ...

Yellowstone contains more than 10,000 thermal features. The number and location of thermal areas is always changing, begging the question: Where will future thermal areas develop?

Yellowstone contains about 120 thermal areas that collectively are home to more than 10,000 thermal features, like hot ...

Idaho State Police say seven people were killed and eight others injured after a pickup truck and a tour van with foreigner ...

Scientists discovered a magma cap underneath Yellowstone National Park’s surface that may act as a lid to prevent the ...

And for one scientist traversing the park last summer, this level of unpredictability reached new heights as a new column of ...

A major breakthrough came in 2016, when geologists discovered giant reserves of such helium near Lake ... rocks. Yellowstone ...

Scientists have studied Yellowstone National Park's magmatic system for years, but a new view of the magma chamber shows the ...

Yellowstone National Park is known to sit on a huge lake of active magma ... Scientist believe the release of pressure could stop the supervolcano from erupting. This discovery reveals how the magma ...