The other day i was talking to a friend .We started talking about metal detecting .He started rambling on about some of places he thought would be good to detect.One of these places was an old fur trading village were the Indians spent a lot of time next to the river with the white man.There has been a lot of Indian artifacts found,there is still an old concrete bank vault grown over in the woods.I believe that there might still be an old original house near there.Does any body know if the sanborn maps would be of any help on this.(Northwest Oregon)