On one of the friendliest platforms imaginable, a ferocious battle rages. While mowing its way through the surface of a trembling leaf, an aspen leaf miner meets one of its kind. Instead of offering a ...

Getting your Trinity Audio player ready... Fall leaves in Smith Lake at Washington Park on Oct. 21, 2019 in Denver. (Photo by RJ Sangosti/The Denver Post) Look beyond Colorado’s shimmering yellow ...

As you drive on Independence Pass, you may notice vibrant yellows, oranges and reds scattered among the trees. It is officially autumn in Aspen, and leaf-peeping season is here. According to the ...

It is the season of envy in Colorado. The all-too-brief time of year when we admire our forests in their finest states — awash in gold. It is, of course, aspen putting on the dazzling displays. This ...

They are tiny, flat caterpillars barely visible to the human eye, but blotchminers can sneak inside an aspen tree leaf and eat the insides out. "Just like a kid eating the baloney out of a baloney ...

Ready your iPhones and picnic blankets: Colorado’s leaf peeping season is here. As summer wanes and fall approaches, pockets of yellow aspen trees are becoming more and more abundant. Within weeks, ...

I was up in the White Mountains this weekend, walking out to my car in the AMC’s Highland Center parking lot after a hike, and there between the buildings and the cars was a gorgeous aspen tree ...

In many places, spring happens gradually. But in far-north Fairbanks, Alaska, birch and aspen trees often put their leaves out over a span of just 24-48 hours, a dramatic event known as "greenup." ...

After the summer months when tourism is tapering off in Flagstaff, the changing colors of the aspen trees bring people up the mountain to peep the rainbow of leaves on the San Francisco Peaks and ...

Colorado State Forest Service entomologist Dan West says the first reports of yellowing aspen leaves started in mid-August. By late last week, as sightings of possible fall foliage continued across ...