Colorado State Forest Service entomologist Dan West says the first reports of yellowing aspen leaves started in mid-August. By late last week, as sightings of possible fall foliage continued across ...

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 foliage but ...

Aspen leaves along the Peak to Peak Highway are approaching their peak. ABOVE: Near the highway, golden aspens reach for the sky on Friday. BELOW: A pair of aspen trees stand in contrast to dark ...

COLORADO, (KOAA) — Living in Colorado for the past six years, fall has become my favorite season. From crisp nights to snow-dusted mountains and pumpkin-spiced everything, it's the perfect season.

In the mountains, fall's cool temperatures and colorful leaves are a springboard for hiking, kayaking, and biking, while the fresh air builds an appetite for autumn treats (think plump donuts and ...