100721MoabUtahTripMP0007
SHOT 10/1/21 2:05:54 PM - Aspen trees changing colors near Dillon, Colorado. Aspen trees are all native to cold regions with cool summers, in the north of the northern hemisphere, extending south at high-altitude areas such as mountains or high plains. They are all medium-sized deciduous trees reaching 15–30 m (50–100 ft) tall. In North America, the aspen is referred to as quaking aspen or trembling aspen because the leaves "quake" or tremble in the wind. (Photo by Marc Piscotty / © 2021)
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