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 ...

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 ...

Kairos Futura and Aspen Center for Environmental Studies are partnering to mobilize the local community in order to save ...

Yellowstone has opened the eyes of experts to another ecological phenomenon, which has been linked to the return of wolves in the area. It has been explained in detail within the journal Forest ...

Add Yahoo as a preferred source to see more of our stories on Google. FLAGSTAFF — Beneath the scenic yellow and red leaves of soaring aspen trees in the Kachina Wilderness, forest ecologist Mike ...

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.

A local homeowner is suing his neighbors over the felling of aspen trees, the third lawsuit in two years in Pitkin County to center on the removal of trees near property lines. Filed Tuesday in Pitkin ...