The essential features of Adena ritual and their implications
article 1998 Clay, R. Berle

AdenaNorth America > Eastern Woodlands
Clay explores the vertical organization of Adena burial mounds. He see it as 'a basic instability in the Adena … ritual centers on the Central Ohio Valley. It suggests to [Clay] that the structures of inter-group cooperation may have gone though cycl...

Adena ritual spaces
essay 1986 Clay, R. Berle

AdenaNorth America > Eastern Woodlands
Adena mounds are accretional burial mounds built over decades or centuries. Clay examines the premound structures, ritual spaces, and activities and how they also reflect 'differing types of ritual behavior sequential in time.' (page 581). He points ...