Serpent Mounds and the Dakota Sioux

Serpent effigy in Kansas that is depicted as swallowing an egg or sun symbol is identical to the famous serpent in Ohio. More on the ancient Sioux and serpent mounds

It is also a remarkable fact that the Dakota has a tradition among them that they once occupied the valley of the Ohio, and lived in villages and were tillers of the soil.  Now, the point which we make is this: the serpent effigies which have been found in the Dakota territory and on the Mississippi and Missouri Rivers at various points, so resemble that found in Southern Ohio that they convey the impression that the same people built the serpent effigies wherever found