Wild West: America's Great Frontier - The High Country

America's High Country is the land of grizzly bears and giant trees, of frigid winters and scorching summers, of tough ranchers and gold-rush fever. From the Rockies to the Sierra Nevada, survival demands endurance and know-how. From parasitic plants to thieving black bears, tenacious pikas and battling bison, it's in the High Country that the west gets really wild.