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.
Yeah, I took them to Ole Miss and they wanted to know where I found them, I only told them NE Mississippi. I looked at their map and the area I found them in was already marked.
You are probably right. Of course, he could say he purchased them from a man on the side of the road in another state?! I know that if you find any sort of Indian artifact that you better keep your mouth very tightly shut or they could take the land. Thanks.