Aspen aren't the only trees in trouble in the Rockies. The needles of many spruce and pine trees in Colorado are tinged with red, a sign of bark beetle infestation. The outbreak began in 1996 and ...

An insect known for turning entire mountainsides the color of rust could be making a resurgence in Colorado. The pest is none ...

At high elevations in the northern Rockies, mountain pine beetles are killing countless whitebark pine trees, a major source of food for wildlife including grizzly bears A Final Takeoff The ...

Sawmill Reservoir is a hidden sanctuary, looming in the shadows of the Rockies and quietly sits among shady pine trees and blooming wildflowers, just west of Colorado's coolest college town.

Pest-infested trees may appear in shades of brown, red or gray, according to the report. Each region in Colorado faces a different threat. The report found that the mountain pine beetle and ...