There’s the Cerutti mastodon bone where the physical evidence suggests it was carved/altered by humans. It was discovered near San Diego and has been dated to 130,000 years ago.
https://en.wikipedia.org/wiki/Cerutti_Mastodon_site
I remember when Louis Leakey toured the US. He said some of the American Indian artifacts from 12,000 years ago were actually 130,000 years ago.
No one believed him but no one countered him either. That was the trip in which he fell off the stage. Saw it on a National Geographic special fifty years ago.
On the east coast around 30 years ago, I met an anthropologist who had come from California. She also spoke about finds about 130,000 years old and how those professionals who believed this were nuts. Just like the nothing before Clovis boys; boy have they gotten a surprise. At any rate that kind of date makes logical sense. I have no information about the forensic sense. The last great cooling started around 120,000 years ago. Thus the suggested age for the finding(s) would fit into the warm period that preceded the more recent long cooling period we have now left to enjoy a few warm millenia.
So this mastodon bone find was around 2017, but the lady I spoke to was 30 years ago or more, so there is probably other information about such disputed finds out there. At any rate the date given was also given almost another 10,000 years earlier or later, so 120,000 to 140,000 years ago. Perhaps a find from closer to the earlier date as less melting of vast ice sheets would have occurred, and a wide Bering Strait land bridge would still have been available for a time.
Several other thoughts. Could similar ancient genetic traces be found in north Asian peoples and some of the older, more primative western North American peoples. It is believed our recognized early Americans followed the mammoth herds over the Bering landbridge from Asia into North America. Not unreasonable that earlier Mastodon herds might have been followed. In this case a young one, easier to kill. Also, there is the still unsatisfied question of possible Sasquatch(sp?) hominids in our northwest regions. Could they be a somewhat primativized remnant of a more developed group of people who barely survived the trip(s) and regressed to a less cultured remnant.