As you drive on Independence Pass, you may notice vibrant yellows, oranges and reds scattered among the trees. It is officially autumn in Aspen, and leaf-peeping season is here. According to the ...

A gang of Western tent caterpillars have taken up residence in acres of aspen trees north of Durango in the San Juan National Forest. The insects construct their silken tents on aspen tree branches ...

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 ...