arizona, fall, fall color, fall colors, leaf, leaves, leaves changing color, arid climate, arid climates, outdoors, outdoors shot, nature, nature lover, nature detail, nature lovers, nature backgrounds, tree, tree area, tree branch, landscape, landscape scene, scenic, scenic beauty, scenic backdrop, scenic backdrops, scenic background, blue sky, colorful, forest, forestry, orange, red, green, trees, american state, life science, autumn, woods, discipline, district, vicinity, woody plant, outside, wood, biology, vegetation, scenery, plant, state, season, crimson, plant part, science, foliage