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

Last September, at timberline along the south slopes of Mount Kaweah in Sequoia National Park, Safford paused to admire a ...

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.

SEATTLE — Time is ticking down for a giant sequoia that has towered over Seattle for possibly a century or more. The massive tree is slated to be cut down as soon as next week, and now activists ...

The hike resulted in a new elevation record for the Jeffrey pine, now California's highest recorded tree. (Hugh Safford, UC Davis) Last September, at timberline along the south slopes of Mount Kaweah ...