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).

If you are into off-the-grid, rugged terrain, Grand Canyon-Parashant National Monument may be one of the "last truly wild" ...

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.

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 ...

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 ...

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 ...

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.