Various shots of many deer, doe, buck and fawn, moving about in lightly snow-covered forest, feeding on bare patches of vegetation. Various shots of national parks warden travelling by dogsled over snow-covered treed areas, over frozen lake, up and down hills in Rocky Mountains. Various shots of an other warden making tour of inspection in national park, climbing rock face and using field glasses. Various shots of park warden and colleague coming out snow house, putting on skis, skiing cross-country, making downhill runs on tour of inspection. HAMLS of diesel-drawn passenger train travelling through snow-covered Rocky Mountains.