Like careful note-takers during the past 1,250 years, Engelmann spruce trees high in the Yellowstone National Park backcountry have left behind a record of how harsh summer temperatures have been. A ...

After reviewing 40 trees across three counties, the Colville National Forest has selected the tree that come December will grace the lawn of the Capitol building in Washington D.C. “It’s a very ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. In the middle of the last century, Montana produced more than 4 million Christmas trees. The ...

Banner image: A forest in the San Juan range of the Rocky Mountains, with dead Engelmann spruce trees alongside live aspen trees. (Credit: Robert Andrus) Bark beetle outbreaks and wildfire alone are ...

If the climate continues warming as predicted, spruce beetle outbreaks in the Rocky Mountains could become more frequent, a new multi-year study led by Colorado State University finds. While insect ...