The northwestern edge of North America is a final edge to settle on a finite planet. Where does mankind go from here? Where else have we not settled, altered, and consumed? Author Susan Zwinger suspects that we have saved this wild edge for last because its geography is punched, exploded, ground, and drenched. Its forest of enormous trees once created a boundary difficult to penetrate, let alone farm. Yet, today this wildness is under threat, as civilization bores its way into even this remote edge.