Unroll the world's map, and look upon the great northern continent of America. Away to the wild west, away toward the setting sun, away beyond many a far meridian, let your eyes wander. Rest them where golden rivers rise among peaks that carry the eternal snow. Rest them there. You are looking upon a land whose features are un-furrowed by human hands, still bearing the marks of the Almighty mould, as upon the morning of creation; a region whose every...