The distribution of major vegetation communities as they existed in the Great Lakes Region during late prehistoric times is depicted in map 3.

[Introduction] Within the area of the Great Lakes and upper Ohio River valley, the disruption of Indian life has been so extensive and so frequent that the history can be clarified only with the visual aid of maps.

[Preface] The chain of events leading to the creation of an atlas of Indian history began in 1963, when I agreed rather casually to find out what Indians lived around my home base, Ann Arbor, Michigan, at the time of the American Revolution.