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 ...

For 30 years, Aspen has held the title of Tree City USA, one granted by the Arbor Day Foundation to communities that meet four requirements: The city must maintain a tree board or department, meaning ...

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 ...

Initials and pictures carved into trees are a common sight along hikes in aspen groves. Recent research sheds light on how ...

It is the season of envy in Colorado. The all-too-brief time of year when we admire our forests in their finest states — awash in gold. It is, of course, aspen putting on the dazzling displays. This ...

Aspen, also known as aspen poplar, poplar (especially outside North America), popple, trembling aspen, bigtooth aspen, quaky and a dozen other local names, is a wonderful wood for many use. The lumber ...

Aspen residents can recycle their Christmas trees for free through a city program in partnership with Aspen Tree Service. The initiative, which has been in place for over five years, continues to ...