About 30,000 native trees, including dwarf birch and montane willows, are to be planted at around 600m (1,968ft) on Cairn ...

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

The Thousand Oaks man was one of roughly two dozen volunteers with Team Rubicon on the nonprofit's latest deployment to the ...

While city officials called the sighting “confirmed,” TPWD has the final word on the matter. It would be the first time a ...

A UC Davis professor's pleasure hike in the High Sierra turned into a new elevation record for California's highest tree, the ...

A 13-year-old boy has died after he was injured in a snowboarding accident at Mt. Bachelor Ski Resort in Oregon on Wednesday, ...

Monarchs traveled to a remote part of Mexico, a journey they've made for thousands of years, and wintered there. Now tens of millions of the butterflies are on an epic aerial journey back north.

In the wake of two tragic deaths at Mt. Bachelor in the past month — including the recent loss of a 13-year-old skier from ...

The Arbor Day Foundation has recognized Iron Mountain as the newest Tree City USA, a free program that can help educate ...

Climate-induced warming is fueling the proliferation of insects keen on invading Colorado’s forests and leaving the trees ...