Ailing Aspen Trees – Leave that turn brown or black instead of gold are an increasing sign of ailing aspen trees along the Front Range.
Boulder Naturalists Steve Jones and Scott Seevers take a look at the health of local aspen trees . . . and also find an aspen that’s got black claw scars — evidence it was climbed by a bear. Images courtesy of Steve Jones.
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Nature Almanac: Ailing Aspens KGNU