Squier and Davis engraving, plate number XIX, of the Mound City Group, <a href="https://en.wikipedia.org/wiki/Shriver_Circle_Earthworks" class="extiw" title="en:Shriver Circle Earthworks">Shriver Circle Earthworks</a> and other earthworks, now part of <a href="https://en.wikipedia.org/wiki/Hopewell_Culture_National_Historical_Park" class="extiw" title="en:Hopewell Culture National Historical Park">en:Hopewell Culture National Historical Park</a> in <a href="https://en.wikipedia.org/wiki/Ross_County,_Ohio" class="extiw" title="en:Ross County, Ohio">Ross County</a> near <a href="https://en.wikipedia.org/wiki/Chillicothe,_Ohio" class="extiw" title="en:Chillicothe, Ohio">en:Chillicothe, Ohio</a>.
<a href="https://en.wikipedia.org/wiki/E._G._Squier" class="extiw" title="en:E. G. Squier">Ephraim George Squier</a> and <a href="https://en.wikipedia.org/wiki/Edwin_Hamilton_Davis" class="extiw" title="en:Edwin Hamilton Davis">en:Edwin Hamilton Davis</a>
1848
Squier and Davis map