THE INTER-MOUNTAIN - In prehistoric times, stone was the common material used for making tools. Archaeologist Richie Rosencrance will lead a demonstration on flintknapping, the process used to make spear points and arrow points, at 1 p.m. Saturday in The Stirrup Gallery in Myles Center for the Arts on the campus of Davis & Elkins College. The demonstration will include a discussion on raw materials, knapping tools and techniques, types of stone tools and prehistoric lifeways. Anyone who has artifacts they would like to learn more about is encouraged to bring the items to the session for Rosencrance to examine. There is no fee to attend. For additional information, call 304-637-1980 or visit www.dewv.edu/arts-entertainment/stirrup-gallery.