Rick Bass, a prolific writer of considerable merit, has crafted an elegant plea to save the ecosystem of the Yaak Valley in northwestern Montana. Bass argues that the Yaak deserves to be saved, both for its beauty and for its role in a biological system that stretches through much of North America. To enamor readers with the Yaak he describes it with reverence, and in doing so makes us care. "We are all complicit," he says.