Are we loving our mountains to death? Guy Clarkson examines the current state of human encroachment in the Rocky Mountains. To explore this subject, Clarkson skis virgin slopes with a heliski pioneer, hill climbs with snowmobilers, rides boundary trails with park wardens and talks to a First Nations chief. On the eastern slopes of the Rockies, a housing development runs into a coalition of ranchers and conservationists. This is an eco-region on the edge, but how to save it before it's too late?