Boulder, CO, USA - This new field-trip guide from The Geological Society of America takes readers on a six-day, west-to-east geologic journey across the Mesozoic magmatic arc of the central Sierra ...

Earth's crust once formed a dense "root" supporting Colombia's northern Sierra Nevada de Santa Marta mountains, but new research suggests this prop sank into the mantle millions of years ago. When you ...

Geology, wilderness, wildlife, seasonal weather and vivid memories may come to mind when thinking about the Sierra Nevada mountain range. There are plenty of opportunities for outdoor enthusiasts to ...

Parts of western U.S. were once covered in thousands of feet of lava from dozens of Yellowstone-size supervolcanoes that erupted between 40 and 20 million years ago, scientists have said. These ...

The Sierra Nevada dates back approximately 40 million years, according to a Stanford study. It took all those years for water to form marvelous canyons, and they offer some of the best hiking on the ...

(CNN) — Seismologist Deborah Kilb was wading through California earthquake records from the past four decades when she noticed something odd — a series of deep earthquakes that had occurred under the ...

One of the longest ongoing controversies in Earth science concerns the age of California's Sierra Nevada, the tallest mountain range in the continental United States and site of Yosemite National Park ...

With over 56,000 votes cast, the W.M. Keck Earth Science and Mineral Engineering Museum was voted third best museum in the Sierra Nevada. The “Best of Sierra Nevada” competition is in its second year.

Two faults potentially hold the threat of major earthquakes for communities in the eastern flank of the Sierra Nevada mountains in the western United States, recent studies of the area have found.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Seismologist ...