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Published online by Cambridge University Press: 20 January 2017
Ritchie and Dragoo criticize Griffin, who rejected in his review their hypothesis that Adena groups migrated to the East Coast and Northeast, for basing his judgment on a few poorly documented sites, rather than on the large and recently excavated Adena sites in the Upper Ohio Valley and the Chesapeake Bay area. They summarize the evidence from these sites in terms of the questions raised in the review.