Thirty, nice vids man. I was digging for trilobites in a creek here in SW Ohio last weekend with my girlfriend's brother. He had been asking me to take him. We had done well with the fossils when he said that he had always wanted to find an arrowhead. There were some winter-washed, chisel plowed soy fields above us. We began to walk them and within twenty minutes I found a pretty nice granite celt. I need to get some pics of it. We searched an hour longer and found one broken point. You never know.........Good luck out there.
Chuck