Three Native American men, each with a horse, in a mountainous landscape.
Title from the Smithsonian Virtual Online Archives (SOVA), National Museum of Natural History, National Anthropological Archives (viewed May 2021): Guide to the Edward S. Curtis papers and photographs, circa 1895-2001; series 9.4: Other Photographs, Grand Canyon series, ca. 1915, box G34; ESCgc11: Men and horses at the Grand Canyon.
Forms part of a collection of lantern slides by Curtis (ARC 1176).