Mountains

This rock contains the first of the newly discovered fossils: It is a portion of a fossil lake shore that preserves very fine details of ripples produced by waves, on which a small reptile left behind footprints of its legs and tail.

Italian Hiker Discovers Animal Tracks From a Time Before Dinosaurs, Hinting at a Prehistoric Ecosystem

Revealed by melting snow in the Alps, the imprints in rock were left by reptiles and amphibians during the Permian period, which ended with the world’s largest mass extinction

Sierra Nevada yellow-legged frogs are rebounding from near-extinction in California.

Endangered Sierra Nevada Yellow-Legged Frogs Are Making a Comeback

Scientists are celebrating the recovery of the species in Yosemite National Park, where they were decimated by the introduction of non-native fish and the deadly amphibian chytrid fungus

At dawn, a woman and her dog walk along a serene shore in the Corona Del Mar area of Newport Beach as gentle waves greet them.

See 15 Stunning Photos of California That Showcase the Golden State's Majestic Beauty

California offers lovely beaches, forests, deserts, mountains and more!

Pocket gophers are a type of burrowing rodent known for their extensive tunnels.

How a Team of Gophers Restored Mount St. Helens After Its Catastrophic Eruption With Less Than a Day of Digging

After the volcanic eruption of 1980, scientists released the burrowing rodents for only a brief time, but their activities left a remarkably enduring impact, according to a new study

A view of a snow-covered Mount Fuji from Fujiyoshida in Japan.

Japan's Mount Fuji Has Now Remained Snowless for the Longest Time in Its 130-Year Record

After a summer that tied for the country's hottest, meteorologists say an unusually warm autumn is delaying snowfall

A composite image of Tugunbulak created using lidar scans

Archaeologists Map Two Forgotten Medieval Cities That Flourished Along the Silk Road in the Mountains of Central Asia

The new research could change history's understanding of the sprawling trade network that connected Europe and the Middle East to East Asia

Andrew Irvine, back left, stands beside George Mallory and other members of the British Mount Everest expedition in 1924.

Famous Explorer's Remains Discovered on Mount Everest Offer Clues in a Century-Long Mystery

In 1924, Andrew "Sandy" Irvine joined George Mallory’s expedition to the world’s highest peak. Now, Irvine’s recently found foot and boot hint at what might have happened on that ill-fated undertaking

Mount Everest seen at sunset, as the peak’s height continues to grow at a rate of about two millimeters per year.

Geologists Reveal a Surprising Reason Why Mount Everest Grows Taller Each Year

Earth's highest peak has gained as much as an extra 165 feet in elevation as the planet's crust adjusts due to erosion from a river, according to a new study

More than 650,000 people visit Kuwohi at Great Smoky Mountains National Park each year. The summit is topped by an observation tower accessible via a paved path.

The Highest Peak in Great Smoky Mountains National Park Will Now Be Called by Its Cherokee Name

In 1858, the mountain was named for a Confederate general. Now, it will once again be known as "Kuwohi"

A mountain in the Dickson Fjord after 33 million cubic yards of its rock and ice collapsed in a landslide.

A Mysterious Seismic Signal Lasted Nine Days Last Year. It Was a Mega-Tsunami Caused by Climate Change, Researchers Say

A melting glacier caused a mountain in Greenland to collapse into a narrow fjord, setting off an oscillating wave that rattled seismic detectors around the world

The Mount Everest Base Camp, at 17,598 feet high, hosts climbers acclimating to the elevation before they make their ascent.

More Than 200 Dead Bodies Have Been Left Behind on Mount Everest, and Many Mark the Path to the Summit

Mountaineers who perished on the world's highest peak have become landmarks for the living, though recovery crews have made risky expeditions to remove some of the corpses

Frustrated residents of Sheridan, Wyoming, coalesced around the idea of secession, allying with nearby communities to petition for their own state.

How the Great Depression Fueled a Grassroots Movement to Create a New State Called Absaroka

In the 1930s, disillusioned farmers and ranchers fought to carve a 49th state out of northern Wyoming, southeastern Montana and western South Dakota

Maletsunyane Falls in the Lesotho Highlands shows how a river can erode deep valleys into uplifted lands.

Slow-Motion Ripples in Earth's Mantle Built Mysterious and Stunning Highland Landscapes, Study Finds

Following the break-up of an ancient supercontinent, waves propagated through the hot, rocky layer beneath the planet's brittle crust and reshaped its surface over millions of years

Firefighters in Jefferson County, Colorado, are encountering prairie rattlesnakes as they battle the Quarry Fire southwest of Denver.

'We Have a Rattlesnake Problem': Wildland Firefighters in the West Must Also Face a Slithering, Venomous Foe

Nearly 100 large fires are burning in the United States right now, including some in rattlesnake territory

Shade-protecting overhangs known as awnings line a street in New York City in the 1850s.

Six Innovative Ways Humans Have Kept Cool Throughout History

From sleeping porches to coastal escapes, these tips and tricks helped people deal with extreme heat before the advent of air-conditioning

Denver's historic train depot dates back to 1881. Today, it's a thriving community hub.

See Inside Denver's 143-Year-Old Train Station

The transit hub, which just got an $11 million makeover, is deeply connected to the city's history

On July 5, Peruvian authorities recovered the mummified remains of American climber Bill Stampfl from the slopes of Huascarán.

Melting Ice Reveals Body of American Mountaineer Missing for 22 Years in the Peruvian Andes

Bill Stampfl, Matthew Richardson and Steve Erskine went missing in an avalanche on Huascarán on June 24, 2002. Climbers found Stampfl's body just weeks ago

The Mount Rainier white-tailed ptarmigan is one of the few animals that spends its entire life at high elevations.

Meet the Rare, 'Beautiful' Birds That Thrive in Snow and Are at Risk Because of Climate Change

The U.S. Fish and Wildlife Service listed the Mount Rainier white-tailed ptarmigan as threatened under the Endangered Species Act this month

Mount Halla is located on Jeju Island, a population tourist destination south of the Korean peninsula.

Leftover Ramen Broth Is Causing Problems on South Korea's Mount Halla

Visitors are dumping the salty liquid on the ground, and authorities are concerned about its impact on plants and animals

Camp III with Everest rising above the flank of Changtse mountain.

See Photos From the 1924 Mount Everest Expedition That Led to the Vanishing of Two Explorers

A century later, a new book captures the grand scale of the mountain and uncovers more about the expedition and the people at its center

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