Plugged by no fewer than twenty-five dams, the Colorado is the world's most regulated river, providing most of the water supply of Las Vegas, Tucson, and San Diego, and much of the power and water of Los Angeles and Phoenix. If the river ceased flowing, it would soon be necessary to abandon many of the largest cities in the West. The Colorado is indeed a river of life, which makes it all the more tragic that when it approaches the sea, it has been reduced to a toxic trickle, its delta dry and deserted. In a blend of history, science, and personal observation, acclaimed author Wade Davis tells the story of America's Nile, from its legendary history to the human intervention that has left it transformed and near exhaustion.