I haven't seen this article mentioned in any of the posts, so I thought I'd share it. It's about a dude in Boulder, CO that found a cache in his front yard. Pretty interesting read. Check it out:

http://www.examiner.com/x-2430-Science-Examiner~y2009m2d25-Ancient-cache-of-tools-found-in-Colorado

scroll down to interesting reading

aha! I see it now. toldja it was interesting

not enough pic of the 80