The Apishapa archaeological phase in southeast Colorado, USA, was more likely an eastern extension of the Great Basin Desert Culture than a western extension of the Plains Village pattern. For this reason, Archaic Period rock art in the Great Basin and the Apishapa area are remarkably similar. Abstract curvilinear and rectilinear styles in both areas share several motifs and combinations. Because
... [Show full abstract] of Apishapa origins, we use Great Basin ethnography to discuss abstract rock art in the lower Apishapa canyon. The Great Basin version of shamanism, especially the interrelated concepts of dynamic power, soul travel, and sacred pilgrimages help to explain many images. Overall, sacred pilgrimages provided the social context for much of the art.