This Saturday, the city will celebrate Aspen Arbor Day at Paepcke Park from 9 a.m.-noon — the 31st year of these celebrations since being designated a Tree City USA city. Festivities will include ...

This week, a team of researchers from Sweden, Belgium, England, Italy, Norway and South Korea publish the genomes of two species of aspen trees, a project that has taken close to ten years to complete ...

Warming temperatures continuously impact mankind, wildlife, major corporations and propositions at all levels of government, but for Flagstaff forests, climate change is a catalyst for countless ...

After decades of decline, the aspen forests of northern Yellowstone are finally making a comeback, and believe it or not, it’s all thanks to the return of certain carnivores. A new long-term study has ...

PHOENIX — Arizona's aspen trees are an iconic symbol of fall, drawing thousands of hikers and photographers to the high country every year. However, research out of Northern Arizona University ...

The city of Aspen manages 3,115 narrowleaf cottonwood trees — roughly 27% of Aspen’s “urban forest.” Cottonwoods provide the leafy backdrop to Rio Grande Park, shade the gables of West End Victorian ...

On the shoulder of Kebler Pass, about seven miles west of Crested Butte, a giant lounges in the Colorado high country. The Kebler Pass aspen stand covers the equivalent of just over 100 football ...

Urban Villages has opened a $100 million hotel in Downtown Denver modeled to resemble an aspen tree, which claims to be the “first carbon positive” hotel in the U.S. The locally based developer opened ...