Certain regions of North America are well known for their early Amerindian earthworks. Ohio, for example, was littered with earthworks, mostly in the form of conical mounds. There are also a number of geometric and effigy mounds.

My Effigy Mound Articles:

Great Serpent Mound, Adams Co., OH
From Squier and Davis (1848)

Great Serpent Mound Links:

Join the Effigy Mound discussion list

Links:
   
  Would you like to help support this website? You can do so by visiting the website www.paypal.com and reading through their information on how you can (for free) send money to anyone in the U.S. easily and without fees. If you like it, sign up and register a credt card - when you do that, and if you have used this link or register caa1snake@aol.com as the referree, I get $5 and you get $5. This is for a limited time, so please consider this carefully (and at this time, it is only available to U.S. citizens; but they should be going worldwide this year). Thanks much.