|Image Name||Width x Height||Size|
|SIA3727.jpg||451 x 640||75K|
|SIA3727.jpg||845 x 1200||223K|
|SIA3727.jpg||3577 x 5081||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 colored and a distance marker has been added.