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

Coconino County is no stranger to fires, from the Pipeline Fire to the Schutze Fire, causing hundreds of millions in damages.

The U.S. Forest Service is providing notice that it plans to reissue a final environmental review and draft decision on a contested transfer of land in Arizona that would clear the way for a massive ...

Do you know that April 18th is Colorado Arbor Day and National Arbor Day is April 25th? So I’m wondering if you’re going to plant a tree in celebration. Maybe ...

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

Millions of trees flourish on Nebraska’s once treeless plains and in the heart of the Arbor Day state, one tree stands tall ...

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

Joshua Tree National Park will begin a major infrastructure project focused on a new west entrance station. The $5 million project is funded by entrance fees and is expected to be completed in ...

(Contributed by Gifford Pinchot National Forest ... in the loss of thousands of trees. In its scoping letter, the Forest Service said that “natural tree regeneration is not expected for an ...

emeritus research professor at the University of Arizona’s Laboratory of Tree-Ring Research. “This is a stressful year for sure in terms of drought, but it’s not unheard of.” To track annual rainfall, ...