Radiocarbon date distribution of 87 burned rock midden use episodes from 40 sites on and near the Edwards Plateau, as judged from patterns seen among a total of 150 radiocarbon assays. This distribution clearly shows that plant baking (midden use) peaked during the early to middle part of the Late Prehistoric era, or between about A.D. 750 and 1350. Graphic by the Center for Archaeological Research at the University of Texas at San Antonio; original appears in a 2003 report by Raymond Maudlin and others on midden research at Camp Bowie near Brownwood, Texas.