|Image Name||Width x Height||Size|
|SIA3743.jpg||452 x 640||81K|
|SIA3743.jpg||848 x 1200||221K|
|SIA3743.jpg||3688 x 5220||2M|
This is a digitally modified image from "Ancient Monuments of the Mississippi Valley" in the "Smithsonian Contributions to Knowledge", Volume 1. In order to better show the features it has been colorized and a scale marker has been added.