Mrdigz- yea the finger lakes region has a lot of native history, especially seneca river. I know of people having rooms full of artifacts just walking seneca river after the water recedes a bit in the spring. As far as around cayuga lake there are spots, but I think a lot of the fields/land are inaccessible to the public (res) from what I've seen on the east side anyways.
@creekhunter TY! I'm finding that being at the right place at the right time seems to be the case with quite a few of my artifacts.