A professor's casual hike in the High Sierra turned into a new elevation record for California's highest tree, the Jeffrey pine, which wasn't formerly known to grow at extreme elevations.

The Jeffrey pine, one of the iconic trees of the Sierra Nevada, appears to have eclipsed other pines to become the ...

Scientists found new evidence that Earth’s crust is peeling underneath the Sierra Nevada in California. The process might be ...

Scientist finds Jeffrey pine trees at record mountain heights, suggesting climate-driven shifts in Sierra Nevada.

On Monday, a winter storm was bringing heavy snow across the Sierra Nevada mountains ... Trinity mountains, as well as Etna Summit and Scott Mountain Summit, the warning said. A map of California ...

The Sierra provides about one-third of California’s water supply. Winter storms in the Sierra Nevada this month have ... the Sierra show that the northern mountains have more snow than the ...

and it doesn’t appear that this year’s snowpack in the Rockies and Sierra Nevada Mountains is going to improve the situation. So, state lawmakers are seeking ways to save and protect every ...

Found primarily in the Sierra Nevada mountain range, these foxes inhabit remote, high-altitude regions above 7,000 feet, where they are adapted to cold climates and rugged terrains. Once widespread, ...