Those were not big cats plucked out of a tree Thursday afternoon by the Aspen fire department. A mother bear and two cubs that took up residence this week in a tree on an Aspen pedestrian mall were ...

Conservationists have rescued a rare moss from a tree after it was blown down in a storm. Aspen bristle-moss has only been ...

It’s not just the lodgepole pines that are dying in the Colorado mountains. Thirteen percent of aspen trees in the state are now affected by Sudden Aspen Decline, which is caused by disease and ...

What looks like barren land can change rapidly with the return of a single species. The aspen tree grows quickly, spreads ...

A proposal to try to revive aspen stands across 375,000 acres of the White River National Forest has drawn criticism from environmentalists, endorsements from some local governments and concerns from ...

Prescribed burns continued Thursday near Big Sky as part of the U.S. Forest Service's Aspen Restoration projects. In total 90 acres will be burned at a site in Durnam Meadow, which was lit on Tuesday.

Riders during Stage 1 of the Colorado Classic in Steamboat Springs in 2019. Aspen trees are the mostly widely distributed native tree species in North America, found throughout many northern U.S.

In Vail, when lodgepole pines were cut to create a wildfire buffer zone between neighborhoods and the forest, several kinds of trees and plants repopulated the area in the years that followed. In ...

Yellow Aspen leaves hang on to a tree limb during the autumn, near Buena Vista, Colorado. Brilliant red and yellow aspen trees have become emblematic of Colorado’s fall foliage. But in recent years, ...