Aspen trees (Populus sp.) in autumn, low angle view.  Yukon, Canada

Aspen trees (Populus sp.) in autumn, low angle view. Yukon, Canada

© Eastcott Momatiuk/Riser/Getty Images

Aspen trees (Populus sp.) in autumn, low angle view. Yukon, Canada

Aspen trees (Populus sp.) in autumn, low angle view. Yukon, Canada

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