Formed over thousands of years of erosion caused by hydrothermal activity, water and other natural forces, the Grand Canyon of the Yellowstone ... its many colors and rock formations.

Yellowstone National Park, known for erupting geysers like Old Faithful, is home to one of earth’s largest volcanic systems ... massive enough to fill the Grand Canyon with lava and ash within ...

Yellowstone National Park is a popular destination for geology field trips. It’s easy to see why—the dynamic landscape ...

Scientists say it is not likely the Yellowstone Volcano will erupt anytime soon - in the video below, John Sherer reports on ...

Scientists have assessed Yellowstone's chances of eruption by measuring electronic currents flowing deep within the Earth ...

The gigantic Yellowstone Grand Canyon, lined with volcanic rock. With all the effects of hydrothermal activity, river erosion ...

The northeastern area of Yellowstone shows changes in ... bubbles due to hot springs dissolving surrounding rocks also acts as an acid. Preparedness & vigilance: How we’re staying ahead of potential ...

A team from the United States Geological Survey (USGS), publishing last week in Nature Geoscience also measured the percentage of rock in Yellowstone ... characteristic volcanic ash, but basalt ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory ... valleys with steep canyon walls where rocks are exposed ...

Firehole Canyon Drive stands out since it takes visitors past a waterfall and to a Yellowstone swimming hole ... Firehole Canyon Drive is situated off of Grand Loop Road. The seasonal 2-mile ...