Portsmouth Earthworks
Portsmouth Earthworks was located in Portsmouth Ohio and extends into Kentucky situated at the confluence of the Ohio and Scioto Rivers. It was a massive site that was scaled in miles. Blue lines represent approximate locations of the embankment walls the only parts still remaining are the "Old Fort" Square in KY a Mound in KY and one of the U shaped embankments in Mound Park.
Google MapBlue lines represent the approximate locations of the embankment walls.
Ancient Monuments of the Mississippi Valley
Drawing of Portsmouth earthworks From Ancient Monuments of the Mississippi Valley by Squier & Davis (See Squier & Davis Book Below)
Atwaters Drawing
Atwaters Drawing
"Old Fort" in Kentucky showing the existing embankment wall using GIS over LIDAR Slope Map.
Portsmouth GIS
Choose your basemap, Select + or - to zoom, use mouse or finger to move. Blue lines show Approximate location of missing embankment walls as described in the Ancient Monuments of the Mississippi Valley.