I did look it up: https://en.wikipedia.org/wiki/Calico_Early_Man_Site#Current_consensus https://en.wikipedia.org/wiki/Calico_Early_Man_Site#Current_... > The p

I did look it up: https://en.wikipedia.org/wiki/Calico_Early_Man_Site#Current_consensus https://en.wikipedia.org/wiki/Calico_Early_Man_Site#Current_... > The present consensus is that there is no evidence of human activity at the Calico Early Man site. This consensus developed based on a number of factors, including: > The lack of other evidence of human activity (e.g. human or animal remains, or non-tool artifacts). > The deep antiquity of the site (the next oldest date for human artifacts in the Americas is 30,000 BP, and that date itself is controversial). > The sheer number of possible tools, up to 60,000 by one account.[6] > The research by Duvall/Venner, Payen, and others providing possible natural explanations for the stone objects.