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Drawings of Mississippian petroglyphs from a cave near Ste. Genevieve Mo. Includes circle in cross and other sun motifs, hands, and bird images.
Bushnell, D. I., 1914. Archaeological Investigations in Ste. Genevieve County, Missouri. Washington DC. See also O'Brien, P. J. 1994. Prehistoric Politics: Petroglyphs and the Political Boundaries of Cahokia. Gateway Heritage 15(1):30-47. (O'Brien 1994; p. 35)