Ancient whitebark pine trees emerging from 5000-year-old ice patch in the Beartooth Mountains of Wyoming (photo credit: Daniel Stahle) Ancient whitebark pine trees emerging from 5000-year-old ice ...

Researchers discovered more than 30 dead whitebark pine trees that were ... ice patch in the Rocky Mountains has revealed the remains of up to 5,900-year-old trees that could offer insights ...

Over the past decade the Mountain Pine Beetle (Dendrocthonus ponderosae) has killed millions of pine trees from New Mexico to the Yukon Territory, as a result of an unprecedented explosion in their ...

For more than 5,000 years, a stand of whitebark pine trees in the Beartooth Mountains were preserved in an ice patch. During an ancient warm period, the trees had grown at an elevation above ...