Missouri is a particularly important site for rock art because it straddles the Plains, the Ozarks, and the Southeast. Carol Diaz-Granados and James Duncan have established a model for analyzing this rock art as archaeological data and have mapped the patterning of fifty-eight major motifs across the state. Of particular importance is their analysis of motifs from Mississippi River Valley sites, including Cahokia.

The authors include interpretive discussions on iconography and ideology, drawing on years of research in the ethnographic records and literature of Native Americans linguistically related to earlier peoples. Their distribution maps show how motifs provide clues to patterns of movement among prehistoric peoples and to the range of belief systems. Rock art is an aspect of the archaeological record that has received little attention, and the art is particularly subject to the ravages of time. By documenting these fragile images, this book makes a major contribution to rock art research in North America.