The Curnamona Province is an oval-shaped inlier of late Palaeoproterozoic to Mesoproterozoic metasedimentary and meta-igneous rocks located in north-eastern South Australia and western New South Wales. The province is host to the world class Broken Hill Ag-Pb-Zn deposit, and is prospective for iron oxide-copper-gold (FeO-Cu-Au) deposits. Crystalline rocks of the region, like those known from many other parts of South Australia, are extensively covered by younger sedimentary sequences. Depth to basement data sets were identified as one of the key information gaps in an audit and gap analysis of geoscientific data for the province, which was undertaken for PIRSA Minerals Group by consultants McConachy et al. in 2003. Since then the Geological Survey Branch has striven to generate a Curnamona Province depth to basement data set by integrating drillhole depth to basement data with in-house geophysical interpretations of seismic, magnetic and gravity data. The drillhole information has been used to constrain depth estimates derived from the other data sources, allowing confidence in making basement depth estimates for areas of the province where there are few drillholes. The Curnamona Province depth to basement data set now available reduces exploration risk and promotes mineral exploration in poorly explored regions of the province. The Benagerie Ridge and covered basement region east of Mount Painter are two poorly explored areas highlighted by this data set as being within currently feasible exploration depth. Initial analyses of this data set have also elucidated important Neoproterozoic and Cambrian tectonic and basin development features.