Archaeologists find a series of Archaic mountain villages in Wyoming, and the dates lead them to wonder if Numic-speaking people (ancestors of the Comanche, Ute, Shoshone and Northern Paiute) migrated from the Rockies to California, instead of the other way around, as had been assumed.
It reminded me of a trip that I made to the Windy Gap site in Colorado's Middle Park back in my newspaper-reporter days. It dated back at least 5,000 years, and the unusual feature was that it showed evidence of a hut with wattle-and-daub walls. The elevation, as I recall, is at least 9,000 feet.
Wattle-and-daub construction has been found around the world, but its presence suggests at least semi-permanent seasonal occupation, as opposed to building a quickie shelter or small tipi for a hunting camp.
High altitude living probably was not a winter proposition — Fraser, Colo., near Windy Gap, used to claim it was the "Icebox of the Nation." (So have some other towns elsewhere.) The Wyoming sites were probably too chilly too, if one had the option of going lower down.