How about you start conserving with this site! You know, they don't make 'em like that anymore!
Seriously, these sites can answer some pretty interesting questions. Go easy.
So far we've just taken what washes out in the rain. If we don't take things, the deer will trample them -- in fact, most of what we've found is broke arrowheads. These are probably just hunting camps. Piles of rocks, etc.
BUT, there is no way anyone is going to find these sites until landowners have some sort of protection against the government.
There is also a nice revolutionary war site nearby, and same thing, no one will ever know about it.