I wonder how you go about hunting metal points with a metal detector? Camp sites???
I think the same as you should be doing all over that bird point camp your working Trav,
Once you surface find ANY evidence, perhaps flint or pottery shards....It needs to be checked with a metal detector...
Remember that guy last year that found an "undug, new midden " and found some iron beaver traps
Had he used a detector thats what was there !
Even a Paleo site might yield another diggers lost saint Christopher medal.