The subalpine fir (Abies lasiocarpa) is native to the mountains, of Colorado. It is pretty well adapted to Summit County as it occurs at high altitudes, to 12,000 ft, is commonly found at and ...

But the real threat to our forests in the High Country west of Denver is not from bugs, but from the public agencies entrusted with stewardship or our public lands and forests.  Forest ecosystems ...

The balsam woolly adelgid, a tiny nonnative flightless insect, is spreading across the American West killing subalpine fir in northern Utah's recreation-heavy mountain ranges and canyons. Rsearchers ...

Entomologists from the Idaho Department of Lands and U.S. Forest Service are keeping tabs on a tiny invasive insect that can hammer subalpine fir forests. Balsam woolly adelgid, a wingless creature ...

I had chosen a dispersed camping site on the Uncompahgre Plateau for its proximity to a small reservoir and a large meadow. But when I drove into the site, I found it was littered, not with refuse, ...

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A tagged subalpine fir tree, one of more than 5,000 marked trees monitored as part of this 37-year-long study in the Colorado subalpine forest on Niwot Ridge, west of Boulder. Disclaimer: AAAS and ...

There they are, three small subalpine fir trees in my front yard. They stand fresh and new with their roots beginning to move (hopefully) from their root ball into the ground as they seek to establish ...

Imagine yourself walking quietly through a high-elevation subalpine forest. You feel immersed in shady stillness while enveloped by a fresh scent of pine, spruce and fir. You gaze out at the trees ...

A nonnative tree-killing insect is invading northern Utah, attacking subalpine fir and potentially triggering yet another die-off of the region’s long-stressed conifer forests. Introduced from central ...