Archeological Investigations in the Oahe Reservoir

Oahe Lake

More than 350 archeological sites have been found within the Oahe Reservoir area. A great many of these are of major scientific importance. Some are significant because they represent new and hitherto unknown cultures; others are remarkable examples of their Read More …


The 1997-2001 Excavations At Fort Pierre Chouteau

Fort Pierre

The archaeological field work that produced the buttons discussed in this report took place during two distinct episodes, separated by a 26-year interval. The first excavations were carried out in 1980–81 by Steven Ruple of the State Historic Preservation Office, Read More …




The Demery Site, Oahe Reservoir, South Dakota

Mammoth Excavations

In the summer of 1956 an archeological field party from the State Historical Society of North Dakota carried out excavations at the Demery site, in the upper part of the Oahe Reservoir, in Corson County, South Dakota. Funds for the Read More …




Digging Up The Plains Indians’ Past

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Invasion of the Great Plains in the 1700’s by the Arapahoe, Cheyenne, and Sioux, their use of the horse and the tepee, and their reliance on the buffalo for food account for the popular misconception of the Plains Indian as Read More …