I wish I could help you but I will say that it is pretty cool. Do you hunt for them or just happen by them? I’m wondering if the Smithsonian could assist you? Perhaps you could send the photos to one of their experts?
I'd caution against that, if you want to continue your collecting.
They'll try and get the area "roped-off" as a site of interest to prevent "further looting" and confiscate what you have. Same with any university.
Then they have it all and you will have nothing.
Works the same way as Income Tax.