Erosion
Wednesday, February 23. 2005
Arizona (Jan 19, 2005)
Flying over southern Arizona. There is a point in which the desert ends, abruptly, in a chasm eroded by rivers like the sand at high tide. The terrein is level until the last minute, and then drops in canyons. The view from 30,000 ft is quite amazing and surprises me every time I go to Tucson and manage to get a window seat.
