Looking for an aspeny autumn hike away from crowds and close to Boulder? Try the section of the Switzerland Trail starting on the Gold Hill Road and heading north on FS 93 in Arapaho National Forest.

I was up in the White Mountains this weekend, walking out to my car in the AMC’s Highland Center parking lot after a hike, and there between the buildings and the cars was a gorgeous aspen tree ...

DNA samples from one of the world’s largest and oldest plants — a quaking aspen tree (Populus tremuloides) in Utah called Pando — have helped researchers to determine its age and revealed clues about ...