It was an aspen tree, not one yet showing off the shiny leaves we seek this time of year. Maybe they would never show. “I saw the orange hue on the bark,” said Korb, who has researched the ...

Aspen trees are a powerful icon in Colorado. A glitzy ski town is named after them, tourists come from all over to see the trees’ fall colors, and even John Denver sang about them. But around a ...

Not all trees change color or even shed foliage, but for those that do, there is a science behind it. Ever wondered why all of the aspen trees shift from bright green to a bright golden yellow?

When most people think of seeing fall colors we think of the Aspens changing. But Aspen trees are only one of the many species that produce gorgeous shades of yellows, oranges and reds in the autumn.

FLAGSTAFF — Beneath the scenic yellow and red leaves of soaring aspen trees in the Kachina Wilderness, forest ecologist Mike Stoddard is looking down. His concern isn’t the brilliant fall ...

Fall colors are just around the corner in Colorado ... of spring precipitation and summer rain that really made our aspen trees just take off,” said Dan West, an entomologist with the Colorado ...