Welcome to T-net, by the way. And make sure you notice the distribution map and the date for Hog Back points in the website I provided. It says "1,300 - 1,000 B.P.", which is 1,300-1,000 years before our present time now.
I couldn't tell you the value, but a point like this can be worth a pretty penny. But its important to record exactly where it was found. Writing down the coordinates and the name of the place would be the best. Did you find it on the ground, dig it up, come across it in a creek? Just wondering And I wouldn't sell it If I had found it. Things like these are great pieces to pass down to family.