"Be of good cheer," the war-horse Edward Abbey advises, "the military-industrial state will soon collapse." This sparkling book, which takes us up and down rivers and across mountains and deserts, is the perfect antidote to despair.

Along the way, Abbey makes time for Thoreau while he takes a hard look at the MX missile system, slated for the American West. "For 23 years now I've been floating rivers. Always downstream, the easy and natural way. The way Huck Finn and Jim did it, LaSalle and Marquette, the mountain men, and Major Powell."