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

Forest Ranger Corenne Black has hiked more than 1,000 peaks around the world and still has a lengthy to-do list.

Whether or not logging would solve the wildfire problem is contentious. Many U.S. forests are considered to be at high ...

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