Overview and position of Mertenhof shelter.

(a): Elevation model of southern Africa showing location of Mertenhof Rock Shelter (star) and other sites mentioned in the text (circles); BBC = Blombos Cave, DRS = Diepkloof Rock Shelter, KKH = Klein Kliphuis, KRM = Klasies River, PP13b = Pinnacle Point 13b. (b): Inset showing location of Mertenhof (star) relative to the Doring River (red line) and the boundary between the Cape System and Karoo System geological zones (white line). Other sites shown are 1 = Diepkloof, 2 = Klein Kliphuis, 3 = Hollow Rock Shelter, 4 = Klipfonteinrand, 5 = Putslaagte 8, 6 = Uitspankraal 7, 7 = Tweefontein. Digital elevation data from [21] (c): Lower panel shows a panorama of Mertenhof Rock Shelter (black circle) in the context of the kloof. The Ceberberg mountains are visible in the background on the right hand side of the image, and the shale-dominant Tra-traberge on the left.