Wright Earthworks 
           Also see Ohio Historical Society Wright Earthworks webpage

      Wright Earthworks preserve a fragment of a geometrically near-perfect square enclosure and part of one wall that originally formed a set of parallel embankments.  The sides of the Newark Square ranged in length from about 940 to 950 feet and they enclosed about 20 acres.  The remaining segment of wall at Wright Earthworks is less than two hundred feet long. The parallel embankments framed a passage leading from the square to a huge oval enclosure that surrounded a dozen or so burial mounds.  Another set of parallel walls led from the Newark Square to the Great Circle.  It is interesting to note that the perimeter of the square earthwork is precisely equal to the circumference of the circle.  This is yet another indication of the remarkable sophistication of the geometry and engineering of the Newark Earthworks.

THE NEWARK EARTHWORKS: A WONDER OF THE ANCIENT WORLD

WHAT ARE THE NEWARK EARTHWORKS