The Carrieton 1:63, 360 map area lies about 200 miles north of Adelaide, South Australia. It contains folded rocks of the Burra, Umberatana and Wilpena Groups of the Adelaide System, of Upper Precambrian age; total thickness of these rocks exceeds 30,000 feet. Local units in the Burra Group, composed of quartzite, shale and dolomite, can be correlated only tentatively with the type-section. Units of the overlying Umberatana Group, characterised by the presence of tillite, are more readily identified, as are units of the succeeding Wilpena Group.