Vivid yellow Quaking Aspen, Populus tremuloides, in the fall on a rugged basalt field. An old fallen log is in the foreground. Sunset Crater Volcano National Monument, Bonito Lava Flow, Flagstaff, Arizona. Poster #892570940
Vivid yellow Quaking Aspen, Populus tremuloides, in the fall on a rugged basalt field. An old fallen log is in the foreground. Sunset Crater Volcano National Monument, Bonito Lava Flow, Flagstaff, Arizona. Poster #892570940
