Jeffers Earthworks
Jeffers Earthworks was located in Worthington Ohio at the confluence of the Olentangy River and two tributaries.
Google MapAncient Monuments of the Mississippi Valley
Survey of Jeffers by Charles Whittlesey From Ancient Monuments of the Mississippi Valley (See Squier & Davis Book Below)
GIS by Sean Chaney 2019. Geospatial outlining of Jeffers Earthworks Using ARCGIS over LIDAR. Approximate location of square and circles using dimensions given in the survey.
Jeffers GIS (Approx location of Square and circles)
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Miami Fort
Colrain
Butler Co Circle
Pleasent Run
Fortified Hill
Line Hill
Alexandersville
Cincinnati
Mariemont
Turner Group
Camden
Milford
Fosters
Stubbs
Fort Ancient
Perintown
Stonelick
Batavia
Elklick
Eastfork
Colrain
Butler Co Circle
Pleasent Run
Fortified Hill
Line Hill
Alexandersville
Cincinnati
Mariemont
Turner Group
Camden
Milford
Fosters
Stubbs
Fort Ancient
Perintown
Stonelick
Batavia
Elklick
Eastfork