Smithsonian American Art Museum, Gift of George D. Pratt. The Smithsonian Institution came of age in the era of Manif ...

This level of movement, particularly over such a short period, is considered unusual by the park’s geological team ... The cliffs of Yosemite Valley were carved thousands of years ago by ...

Over the Sierra crest — about 150 miles to the east of Manteca, Oakdale, and Turlock — is one of the world’s largest active ...

Looking for dog-friendly national parks in the U.S.? This guide covers where your pup is welcome, what trails allow dogs, and ...

The glaciers have been receding during most of the last 150 years they have been studied since the days of John Muir’s ...

Little Yosemite Valley. Through this broad antechamber the Merced River ... Circa 1914. Plate 4-A, U.S. Geological Survey Professional paper 160.

This 5-mile round trip trail leads hikers through diverse forest ecosystems, wildflower meadows, and geological wonders ... the segment from Yosemite Valley to Tuolumne Meadows is accessible ...

A provocative new hypothesis suggests that Yosemite Valley was carved by an ancient volcano and a disappearing river, both of ...

Yosemite Airlines delivered the ultimate Sierra Nevada tour, including a grand aerial view of Yosemite Valley.

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 ...

Most visitors to Yosemite National Park flock to the iconic Yosemite Valley, with its sweeping views of El Capitan and Yosemite Falls. But for those looking to escape the crowds and discover a ...