Nothing could be more lonely and nothing more beautiful than the view at nightfall across the prairies to these huge hill masses, when the lengthening shadows had at last merged into one and the faint glow of the red sun filled the west. The rolling prairie, sweeping in endless waves to the feet of the great hills, grew purple as the evening darkened, and the buttes loomed into vague, mysterious beauty as their sharp outlines softened in the twilight.
Theodore Roosevelt on Yellowstone, “The Wilderness Warrior”