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

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

Tired of trimming every tree in your yard before a snow storm hits? Normally this practice is the only way to avoid broken branches from heavy snow loads, but one species of pine tree easily ...

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.

Nancy Bockino is a mountain guide based out of Jackson, Wyoming, as well as a field ecologist with more than 30 years ...

TUESDAY: FIRST ALERT. Snow likely. Highest accumulations in the north. Highs in the 30s. SE wind turning out of the NW and ...