The twilight still tints the horizon in this early evening on the edge of the Colorado at Horseshoe Bend, not far from the town of Page. 340 m below, the kayakers have climbed back from the river bank to bivouac, while the rotation of the Earth etches the movement of stars in the sky. The planet Jupiter goes to bed, while a bright meteor streaks the sky and airplanes ceaselessly thread their contrails.