Cowboy on cattle round alberta americans animal Animals bovine cattle cattle crossing cattle drive cattle round co color photography colorado country countryside cow cowboy cowboys cows crossing drive equestrian Equestrian Beauty equine farm farming field gather grazing grazing land group herd herding horse horseback horses job land livestock male man native native americans navaho north america occupation outdoor outdoors outside people ranch rancher ranchers riders ridgeway riding horse round roundup rural rural scenes southern united states united states of america up us USA western work