This report is a summary of company exploration of the Coober Pedy Ridge and Mount Woods Inlier, northern Gawler Craton, for the period until 1993, being information extracted from data on open file with the emphasis on data referring to the iron ore potential of the region. The association of widespread alteration, Cu-Au mineralization and large volumes of magnetite begs comparison with the neighbouring Olympic Dam deposit, and also with the class of worldwide Proterozoic alteration systems having associated mineralization, including significant iron accumulations, that was developed in a continental, late tectonic environment.