"Focusing on southwestern Minnesota, north-central Iowa, and south-eastern South Dakota, the author describes the ... environmental changes ... [occurring before the arrival of European explorers] and their impact on the human, animal, and plant cultures of the region ... [known also as the Great Plains and the Eastern Woodlands]"--Back cover.

Introduction -- The project (excavation methods and field work) -- The human remains -- The artifacts -- Some conclusions -- References cited.