Source rocks for knapping
What little research I've done on rocks indicates this is called "serpentenite". I really have no idea and I don't know why only these 2 boulders exist within 5 counties, but I found something knappable at least, even if it is 25 miles away (how long would it take to walk 25 miles plus 10 miles from the BOL?)
http://i248.photobucket.com/albums/g...0306001439.jpg
an inside look
http://i248.photobucket.com/albums/g...306001439a.jpg
some ?Jasper? with LOTS of inclusions.
http://i248.photobucket.com/albums/g...0306001355.jpg
I have made a hand drill bit and a fishing harpoon out of the last stuff, and have only spalled a few flakes to knap later, from the top stuff. I'm eager to try it and hope I get a chance this weekend to let some pros have a go at it. Maybe I'll get a chance this evening to go source some more. Would be neat to have an extra bit for the trade blanket this weekend :D