I have a 50 year old cousin who has hunted indian, Revolutionary, and Civil war era artifacts in Kentucky since he was a little boy, he has many musket balls, arrow heads, locks, cannon balls, and other things that he has found over the years,He also found the skull of an Indian girl when he was walking along the Ohio River. He turned it over the the authorities and they gave it to the college that is near where he lives. He even gave me one of the locks that he found. when i get back to the states i will try to get in touch with him and get some pictures to show you guys.
Im currently stationed in New Mexico and there is supposed to be a place up in the mountains where im at that has a few Indian artifacts, ive been wanting to go up there, but dont really wish to go alone, due to the simple fact that to get to it is about an hours hike from a dropoff by a waterfall.