Holocene Stratigraphy and Archeology in the Middle Missouri River Trench, South Dakota

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Science  24 May 1974:
Vol. 184, Issue 4139, pp. 905-908
DOI: 10.1126/science.184.4139.905


Shoreline erosion along man-made lakes in North Dakota and South Dakota has led to the discovery of stratified preceramic cultural remains in an area where previously few such materials have been found. One important exposure, the Walth Bay site, contains a 7000-year sequence of alluvial and eolian deposition capping an abandoned Missouri River terrace. Three distinct soil profiles are associated with successive Late Paleo-Indian, Plains Archaic, and Plains Village Tradition occupations.