a perfect ratio

There is no shortage of water in the desert but exactly the right amount, a perfect ratio of water to rock, of water to sand, insuring that wide, free, open, generous spacing among plants and animals, homes and towns and cities, which makes the arid West so different from any other part of the nation. There is no lack of water here, unless you try to establish a city where no city should be….

Time and the winds will sooner or later bury the Seven Cities of Cibola — Phoenix, Tucson, Albuquerque, all of them — under dunes of glowing sand, over which blue-eyed Navajo bedouin will herd their sheep and horses, following the river in winter, the mountains in summer, and sometimes striking off across the desert toward the red canyons of Utah where great waterfalls plunge over silt-filled, ancient, mysterious dams.

— Edward Abbey, Desert Solitaire (1968)