Mounds and earthworks are the most conspicuous elements of prehistoric Native American culture to be found on the landscape of eastern North America. This book identifies and describes 70 extant, publicly accessible sites in Indiana, Kentucky, Ohio, and West Virginia, where mounds were constructed by Woodland people beginning some 3000 years ago. This book also reviews the culture, history, and geography of the Woodland and Late Prehistoric mound building groups and the fate of their structures during the Historic period. Sources of additional information about the Ohio Valley mound building groups are provided, as is access information for the mound and earthwork sites. The revised edition of the popular guide book incorporates new information and ideas about the mound building groups that have appeared since the first edition was published in 1986, and describes almost twice as many sites as were in the earlier edition.