It’s not just the lodgepole pines that are dying in the Colorado mountains. Thirteen percent of aspen trees in the state are now affected by Sudden Aspen Decline, which is caused by disease and ...

GRAND JUNCTION, Colo. (KREX) — Thousands head to the Colorado high country as fall transforms aspen trees to shimmering gold and fiery orange groves of color, but this year is different. While experts ...

A new tree disease, known as aspen running canker, was recently discovered in the N.W.T. This disease is often fatal to the trees it infects and could cause problems when it comes to wildfire ...

A proposal to try to revive aspen stands across 375,000 acres of the White River National Forest has drawn criticism from environmentalists, endorsements from some local governments and concerns from ...

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 ...

The contrast of the smooth, pale gray bark and bright orange leaves of aspen trees in the fall is a sight to behold in Arizona's higher elevations. But this beautiful display is under threat from an ...

To carve an aspen tree — to take a blade to the trunk for the sake of your initials, for example — is to do harm. Harm to a being with a life expectancy much like our own: 100 years, if we’re lucky.

A symbol of the Western mountains, the Aspen tree, is rapidly disappearing from the landscape at a rate not previously seen. The drop-off is unnerving in areas such as northern Arizona, where ...

To carve an aspen tree — to take a blade to the trunk for the sake of your initials, for example — is to do harm. Harm to a being with a life expectancy much like our own: 100 years, if we’re lucky.