The Coompana Province is a completely buried Proterozoic terrane between the South Australian, Western Australian and North Australian cratons. Until recently, very little was known about the area due to a paucity of data. Here we provide a summary of a recent published paper published showing how we integrated the aeromagnetic, seismic and drillhole data to resolve a c. 1200–1140 Ma tectonomagmatic event in the eastern Coompana Province. This event affected large areas of the Coompana Province and involved several stages of deformation and accompanying magmatism. The new work provides constraints and understanding of the Coompana Province in terms of (1) crustal architecture (2) c. 1200–1140 Ma structural history, and (3) relationship between deformation and magmatism.