The Great Turtle

Figure 6 : In this rendering of the Newark Mounds, openings in the abutting angles have been sealed in order to present the earthworks' pure geometry, thereby confirming the accuracy of their incorporated astronomy, and to lend greater appreciation of the unbroken geometry involved. They demonstrate a possible fusion of scientific disciplines (astronomy, geometry, metrology, iconography and mythology). (Hamilton 1999, after Thomas, Marshall, Hively and Horn) Graphic imagery ©, by Patricia Mason.

nother story, this time preserved by the Cheyenne, demonstrates a possible connection between the High Bank earthwork and accounts of a great turtle...associated with that of a celestial turtle representing the general dome of the sky..."
                      from: http://www.ancientamerican.com/article29p4-5.htm