While the trees have always been susceptible to disease ... But no one has found a cure. In the fall, aspen's golden foliage creates a stunning contrast with the surrounding evergreens.

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

DENVER (KDVR) — A Colorado-based company is installing a new art exhibit on the 16th Street Mall to make it look like a canopy of aspen trees is growing across the strip. On Monday, the Denver ...