Pete Oxford / Chagra cowboys herding cattle and burning the hillsides to keep cattle on the move and rejuvenate the pasture at a hacienda during the annual overnight cattle round-up, Andes Mountains, Ecuador

Pete Oxford / Chagra cowboy portrait with roses in his hat band, on an overnight ride at a hacienda to herd cattle, Andes Mountains, Ecuador

Pete Oxford / Two Chagra cowboys on an overnight ride at a hacienda to herd cattle, Andes Mountains, Ecuador

Doug Wechsler / Chagra (cowboy) on horseback with dog, Antisana Ecological Reserve, Ecuador. December 2016.

Pete Oxford / Chagra cowboy in the morning at a hacienda in the Andes Mountains, Ecuador

Pete Oxford / Close up portrait of seventy-four year old Rafael Changoluisa, a chagra or cowboy at a hacienda in the Andes Mountains, Ecuador

Pete Oxford / Portrait of Luis Yauli a young chagra or cowboy at a hacienda during the annual overnight cattle round-up, Andes Mountains, Ecuador

Pete Oxford / Domestic Cattle (Bos taurus) being herded by Chagra cowboys at a hacienda during the annual overnight cattle round-up, Andes Mountains, Ecuador

Pete Oxford / Two Chagra cowboys riding across open Paramo grassland at a hacienda during the annual overnight cattle round-up, Andes Mountains, Ecuador

Pete Oxford / Chagra cowboys saddling up their horses in the early morning mist at a hacienda during the annual overnight cattle round-up, Andes Mountains, Ecuador

Pete Oxford / Chagra cowboys smoking and relaxing in camp at a hacienda during the annual overnight cattle round-up, Andes Mountains, Ecuador

Pete Oxford / Chagra cowboy with flowers in the band of his hat cleaning a trout to cook at camp, at a hacienda during the annual overnight cattle round-up, Andes Mountains, Ecuador