I’ve been sitting on another possible post about how older tribes followed the mammoth herds.
https://www.sciencedaily.com/releases/2024/01/240117141002.htm
The 130K old Calico site is probably the one you’re thinking of.
https://freerepublic.com/tag/calico/index
DNA wise, anecdotally, I have a trace of Precolumbian DNA, but it comes from the other direction, i.e., from Siberia into Europe. It just happened to drop through to me. :^)
The Clovis-first-and-only is a ridiculous construct. It’s obvious that there have been multiple movements into the Americas (and maybe out as well), and within the Americas, just as there have been everywhere else in the world.
https://www.heritagedaily.com/2024/02/ancient-megalithic-plaza-found-in-the-andes/150564..
Ancient megalithic plaza found in the Andes
Mark Milligan
February 15, 2024