Ecotopia,

"Twenty years have passed since Northern California, Oregon, and Washington seceded from the United States to create a new nation, Ectopia. Rumors abound of barbaric war games, tree worship, revolutionary politics, sexual extravagance. Now this mysterious country admits its first American visitor: investigative reporter Will Weston, whose dispatches alternate between shock and admiration. But Ectopia gradually unravels everything Weston knows to be true about government and human nature itself, forcing him to choose between two competing views of civilization"--Back cover.