The Promontory Culture: Subarctic Canadian People Living in Utah Caves | Natural History Museum of Utah

One of the true American anthropological treasures, a trove of 250 moccasins and leather parts, was found in caves on the Great Salt Lake – after careful study and re-shaping, it seems that they belonged to people from subarctic Canada rather than the Fremont or Shoshone people who inhabited Utah.
— Read on nhmu.utah.edu/blog/2016/08/23/promontory-culture