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 ...

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 is a popular destination for geology field trips. It’s easy to see why—the dynamic landscape contains a variety of geological wonders that are not easily seen elsewhere.

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 ...

Canyon Lodge is the largest National Park Service lodge in Yellowstone National Park, with more than 500 rooms and cabins available. Canyon Lodge is located in the Heart of Yellowstone and is ...

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 ...

Two gigantic canyons on the moon — both deeper than the Grand Canyon — were carved in less than 10 minutes by floods of rocks ...

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 ...