Mar. 28—CHEYENNE — Wyoming's state tree — the cottonwood — can be found lining the streets of its capital city and towering over older parks. Now, many of the historic trees are dying and being ...

Trees are smarter than you think, and the evidence is found in their unique ways they disperse their seeds. Cottonwood trees release white tufts that float in the air – a dreamy sight until you ...

A 105-foot cottonwood tree that was cut out of a Billings backyard last week might have some life left in it. When news of the tree’s demise reached Marty Flanagan, he knew he wanted a piece. For ...

Giant dams built to tame the Colorado River have nearly wiped out native cottonwood trees along many riverbanks, disrupting local ecosystems. But new tiny dams, built to mimic ones that beavers make, ...