Wild West: America's Great Frontier - Season 1 Episode 2 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.