Below are interesting articles sent in by Rob Buchanan regarding lihic sites:
1) The purpose of ancient earthworks near Greenwood Village in NE Ohio. Were they for ceremonial or defensive purposes?
http://www.dispatch.com/live/content/science/stories/2009/01/06/sci_lepper06_ART_01-06-09_B5_PLCCRNB.html?sid=101
2) A lithic site in Turners Falls, MA that has been recognized by the Federal Government as an ancient ceremonial site.
"The federal government has ruled a group of stones discovered in the path of the planned runway expansion at the Turners Falls Municipal Airport is a 'sacred ceremonial hill' and eligible for inclusion on the National Register of Historic Places".
http://www.recorder.com/story.cfm?id_no=5643184
http://www.boston.com/news/local/massachusetts/articles/2009/01/08/sacred_site_diverts_expansion_of_runway/http://www.recorder.com/story.cfm?id_no=4252677
http://www.recorder.com/story.cfm?id_no=4252677
http://www.recorder.com/story.cfm?id_no=4482293
3) Stone rows and circles in Carnac France
http://www.atlantisquest.com/Carnac.html
4) "Enigmatic" rock carvings in NE England
http://www.telegraph.co.uk/earth/environment/4241306/Ancient-rock-art-baffles-experts.html
5) The pre-Clovis Gault site in Texas
http://www.impactnews.com/georgetown-hutto-taylor/history/2972-the-gault-site