The Osage Knap in is this week near Boonville, MO.  It runs May 17 - 21.  
It will be held at the MRVSEA campgrounds, south of Exit 111 on I-70 (the Wooldridge exit).    
Knappin, atlatl throwing, trading, some bowmaking too.  Showers on site, campsites with full hook ups.  
 
Neal