THE GRAND CANYON AFTER A STORM. The famous naturalist John Burroughs called the mile-deep Grand Canyon "The world's most wonderful spectacle, ever-changing, alive with a million moods." Both the brilliant coloring and seemingly the very shapes of the walls, capes, and temples change with sun and shadow, with the coming of morning, noon, and night. And if there is moonlight, outlines of the mighty abyss show, in a silver light, a thousand spectral forms projected from the inscrutable gloom. (Courtesy Fred Harvey, Inc.)