100721MoabUtahTripMP0029
SHOT 10/1/21 2:08:33 PM - Risto, a two year-old male Vizlsa, looks out the window as aspen trees change 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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