Northern Arizona is famous for its aspen trees, and a multi-decade study looks into how they’re being affected by climate ...

In the Wasatch Mountains of the western US on the slopes above a spring-fed lake, there dwells a single giant organism that ...

It may be best known as an upscale winter ski destination, but fall foliage season is a beautiful and less expensive time to visit Aspen. The town’s ubiquitous aspen trees present a sweep of ...