There are 52 sites In UNESCO’s World Heritage List with waterfalls, of which three are in the United States (in Yellowstone, Grand Canyon, and Yosemite national parks).

From Grand View, visitors can witness the canyon as a whole. Then at Inspiration Point, the colors of the canyon's rock walls are most visible, with Lower Falls becoming a part of the distant horizon.

Zion, Grand Canyon, Yellowstone, Yosemite, and Glacier are among the most popular U.S. national parks—here's how to get off ...

A 'secret lid' keeps the volcano in check at Yellowstone National Park, according to new research from Rice University. The cap allows the supervolcano to vent instead of building up pressure.

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Liv Wheeler, M.S. student, and ...

It may be famous for its reliable 'Old Faithful' geyser, but one should never forget that Yellowstone National Park sits on top of a rumbling, dynamic, active supervolcano. Changes are always ...

A detailed look at Yellowstone's magma storage system finds that only one region is likely to host liquid magma in the long term. When you purchase through links on our site, we may earn an ...

A seismic survey reveals a magma cap 2.5 miles under Yellowstone, acting as a pressure-release lid and reducing the risk of a super volcano eruption.

Two of the most popular national parks in the American West - Yellowstone and Grand Canyon - will welcome back visitors on a limited basis over the next several days after lengthy closures due to ...