tag:blogger.com,1999:blog-6057432722659257077.post6836352563197108511..comments2024-03-22T01:42:37.271-04:00Comments on Archaeology of Portable Rock Art: Another sleeping duck figure stone from Maine archaeological sitesKen Johnstonhttp://www.blogger.com/profile/17626582215405908165noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-6057432722659257077.post-27028054575716485442017-07-23T12:06:41.202-04:002017-07-23T12:06:41.202-04:00An interesting note about these duck stones is tha...An interesting note about these duck stones is that they can be found around the early man site in the calico hills along the shoreline of a lake that hasn't had water for around 20,000 years. Luis Leakey believed them to be between 50 to 150 thousand years old. I also came across ape stones, and tools similar to acheulian hand axes while I was there. The duck stone as a tool can be used as a spokeshave, complete with ergonomic grip.Anonymoushttps://www.blogger.com/profile/00134164356251458300noreply@blogger.com