Originally Posted by 1minute
TheKid: Nice materials there and tough stuff to work.

Who's to say on many of the pieces we pick up out there? Items were often resharpened and repurposed as they dulled or broke over their extended lives. Here in eastern Oregon, one often finds single flakes of material miles from it's nearest source and assumes they're nothing but detritus. Such were easily knocked off a core, briefly used for cutting or scraping, then dropped on site. I've found several obsidian cores over the years, and one could still knock off flakes that would be useful knives as is or reduced to points, drills, or scrappers in short order.

I got an obsidian Bradley spike
I found in middle northern TN
UT Knoxville
Has gas chromograph studied obsidian points found in this part of the country and has been able
To ID the actual volcano,s the material came from in the west.
Trade routes were extensive back then.