You'll spot them in an iconic Colorado town with front-row views of the mountains, throughout most of New England, and even ...

Young aspens often don't survive because of factors such as grazing elk, according to a study by Northern Arizona University ...

FLAGSTAFF — Beneath the scenic yellow and red leaves of soaring aspen trees in the Kachina Wilderness, forest ecologist Mike Stoddard is looking down. His concern isn’t the brilliant fall ...