This survey was carried out over the Yamma Yamma, Durham and Karmona Domes to determine the thickness of sediments, the degree and nature of folding in the subsurface rocks, and to relate this to other areas surveyed in the Great Artesian Basin. The structure contours of the C and P horizons show up to 6 separate domal culminations. The traverse coverage is not sufficiently close to resolve the folding and locate domal closures. The C horizon depths are considerably greater than Innamincka, Betoota and Curalle.