A new study from Colorado State University, Western Colorado University and the U.S. Forest Service found evidence that ...

A new study finds that aspen trees slow wildfire spread and may help protect vulnerable communities in fire-prone areas.

Quaking or trembling aspen is a short-lived (50 years), fast-growing, medium-sized tree. It seldom exceeds 60 feet in height and 20 inches in diameter. Although it has some good ornamental ...

Question: Does anyone else have as many problems with aspen trees as I do? I thought they were easy to grow when I planted several in my yard 10 years ago. They get aphids almost every year, which ...

The city of Aspen announced Tuesday an increase in early leaf drop of some cottonwood trees due to a surge in fungal diseases. The primary fungus causing damage is Septoria, which is a common foliar ...

Research into aspen mortality shows that 50-95% of the trees in aspen stands at lower elevations in Arizona have died in recent years due to things such as grazing, prolonged drought, diseases and ...

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 wound leaves open the possibility of diseases or pests entering the tree,” the Leave No Trace website said. Leave no trace: Don’t carve into Aspen trees in Colorado ...

ASPEN ” The explosion of color in the high country this fall is overshadowing a hangover some aspen trees are suffering from the severe drought earlier this decade. A variety of factors have ...

Populus, a new eco-friendly hotel in downtown Denver, doesn't just invite guests to stay in a hotel designed to resemble an aspen tree. The creators of the striking 13-story tower, which opened ...

Pando is a 100-acre aspen forest in Utah where all the trees share one enormous root system.

To leave your mark, “it may sound cool,” says Dan West, an aspen expert with the Colorado State Forest Service. “But that tree might not survive because of what you’re doing.” ...