Yellow aspen leaves against a blue sky in the fall, Grand Mesa National Forest, Colorado, United States of America, North America

travel destination photography vertical colour image yellow aspen leaf blue sky grand mesa national forest colorado united states of america north america day low angle view yellow tree no people non urban scene beauty in nature populus tremuloides nature growth national forest usa us united states american north american colour color image color outdoors outside tourist destination travel nobody no one no one low angle from below looking up the natural world natural beauty