"America's great epic of exploration - the journey of Lewis and Clark - was also one of the most successful scientific expeditions in history." "In this illustrated volume, which features more than one hundred photographs and maps, most in full color, noted ecologist and writer Daniel Botkin traces the footsteps of the two explorers as they journeyed from St. Louis, through the breathtaking vistas of the tall-grass prairie and Big Sky country, over the arduous Bitterroot Mountains on the ancient Lolo Trail, to arrive finally at the Pacific coast and its rugged, rainy, and darkly wooded landscape."--Jacket.