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

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

The majestic redwood tree is one of the top things to see in California. Nestled in the Sierra Nevada Mountains, Sequoia and ...

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.

Sierra Pacific Industries has significantly increased its seedling production, with its nursery in Yreka now housing 10.2 ...

This story appears in the December 2012 issue of National Geographic magazine. On a gentle slope above a trail junction in Sequoia National Park, about 7,000 feet above sea level in the southern ...

Six conservancies throughout the state will oversee work largely in Southern California and the Sierra Nevada.

An executive order issued Friday directs federal personnel to increase timber quotas by 25% on 113 million acres of national ...

UC Davis Professor Hugh Safford was hiking for pleasure in California's High Sierra when he stumbled upon a new elevation ...