I was in the Colorado high country before sunrise on an October morning when frost still coated the grass and the aspens had gone fully gold. The sky began with pale pink and deepened toward ruby as the sun climbed, casting long shadows across hills that looked like they had been painted in a single brushstroke.Composition was about layering: foreground grass catching the first warmth, middle-ground trees in peak color, background ridges still in cool shadow. Fall mornings in the Rockies reward anyone willing to leave camp before coffee. The light changes minute by minute. I moved once when the shadow line shifted and stayed there until the ruby tone peaked. Ruby Autumn Sunrise is a literal title. The sky really did go that color. I remember thinking the forecast had been wrong in my favor for once.