They tested oak, desert willow, hackberry and ironwood trees. Brent Blum, director of the Southern Arizona Experiment ...

Almost a quarter of a century after he first travelled the iconic Route 66 by Harley-Davidson, Geoff Hill revisits the ...

At the University of Arizona's Agriculture Center, there are 80 tree saplings that are all being used for this research.

The university welcomed another tree that grew from a seed that traveled into space. The last tree like that came to the ...

If that's an adventure you'd like to try, you're in luck. You can cut your own Christmas tree in all six Arizona national forests: Tonto, Prescott, Coconino, Apache-Sitgreaves, Kaibab and Coronado.

The plan will involve planting up to 27,000 new trees and constructing 550 shade structures over the next few years. Phoenix ...

The Tonto National Forest is working with Apache tribes to restore Emory oak groves, blending tradition with modern methods.

A 70-foot-tall fresh-cut tree made its journey from the Shasta-Trinity National Forest on the California-Oregon border, ...

Herpetologist Bryan Hughes of Rattlesnake Solutions said he encountered the 3-foot snake around 11 p.m. in the isolated Sky Islands wilderness, and it was up about 20 feet. But it was not the first ...

If you cut down a tree, you can read an environmental record. Now climate change is complicating the narrative.

Rattlesnakes aren’t known to dangle from trees in the dark, but a video recorded in southeast Arizona proves their climbing abilities have been sorely underestimated. It shows a black-tailed ...