Ancient Monuments of the Mississippi Valley

Squier, Ephraim G., and Edwin H. Davis 1848 Ancient Monuments of the Mississippi Valley; Comprising the Results of Extensive Original Surveys and Explorations. Smithsonian Contributions to Knowledge Vol. 1. Smithsonian Institution, Washington, D.C.

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Archeological atlas of Ohio : showing the distribution of the various classes of prehistoric remains in the

state, with a map of the principal Indian trails and towns

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The Turner Group of Earthworks: Hamilton County, Ohio

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