For a rare, if not lucky, few days a year, Yosemite National Park’s famed El Capitan granite cliff converts into what looks like an active volcano jutting 3,000 feet above the valley floor.

Unlike the lush forests and granite cliffs of Yosemite or the vast desert expanses of Death Valley, Lassen’s terrain is shaped by fire. Being among the U.S. national parks with active volcanoes ...

Cerro El Cono is a solitary, pyramidal hill in the Peruvian Amazon rainforest whose origins remain mysterious and that holds ...

Yellowstone National Park sits squarely over a giant, active volcano. This requires attention ... ski resort of Mammoth Mountain, just east of Yosemite National Park. It erupted 700,000 years ...

Beneath Yellowstone lies an active volcano with the ability to change ... There can be nothing in the world more beautiful than the Yosemite, the groves of the giant sequoias and redwoods, the ...

A provocative new hypothesis suggests that Yosemite Valley was carved by an ancient volcano and a disappearing river, both of which have long since eroded away. Geologists have long debated why ...

Summer online reservations for Yosemite National Park ... as visitors clamor to see El Capitan when it resembles an active volcano. When the sunset properly backlights Horsetail Fall, the water ...

Newberry Volcano is one of 169 current active volcanoes throughout the United States. Discover parks that feel like mini ...

Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend.

A mile from Yosemite National Park ... Volcano House lets visitors get close to an active volcano. First opened in 1846 at what is now called Hawaii Volcanoes National Park, Volcano House overlook ...

Of the eight active volcanoes on the USGC watch list, three are relatively easy to explore — Long Valley, Mt. Lassen, and ...