Visit this area of the White Mountains in California's Sierra Nevada region, where you can hike and see trees that predate ...

You are able to gift 5 more articles this month. Anyone can access the link you share with no account required. Learn more. BILLINGS, Mont. — Climate change, voracious beetles and disease are ...

Mountain pine tree that feeds grizzlies is threatened by climate change, beetles Whitebark pine trees are expected to be added as a threatened species under the Endangered Species Act.

The mountains (such as the highest peaks in Scotland) are a tough place to live, exposed to sudden downpours, scouring wind, and blazing sunshine, but some trees specialise in these conditions.

Frequently encountered pine tree species in our area, some of them more than a half-century old, include Canary Island pine, Italian stone pine, Aleppo and Afghan pine.

In California, Where Trees Are King, One Hardy Pine Has Survived for 4,800 Years In a harsh alpine desert, the Great Basin bristlecone pines abide amid climate change. Among them is the oldest ...

Mountain ski guides frequent the high alpine where whitebark pine grows. Two are using their time in the backcountry to educate others on the power and grace of this endangered tree.

Will Powers/AP, File FILE – This July 20, 2007 photo shows a hillside stand of lodge pole pine trees, fronted by aspens inside the gate of Rocky Mountain National Park, Colo., that has been ...

Check trees this fall for mountain pine beetle. As you might be aware, El Paso County and much of Colorado is seeing an uptick in mountain pine beetle (MPB) activity.

Mountain pine tree that feeds grizzlies is threatened, U.S. officials say This Aug. 1, 2011, photo shows whitebark pine trees that have succumbed to mountain pine beetles in the Gros Ventre area ...

BILLINGS, Mont. — Climate change, voracious beetles and disease are imperiling the long-term survival of a high-elevation pine tree that’s a key source of food for some grizzly bears and found ...

Federal officials say climate change, beetles and a deadly fungus are imperiling the long-term survival of a high-elevation pine tree that's a key source of food for some threatened grizzly bears.