The Coompana Drilling Project was the culmination of a number of years of precompetitive geophysical data acquisition, analysis and interpretation. It set out to retrieve new basement samples from beneath the Nullarbor Plain that would allow program participants to begin to place new geological constraints on the evolution and prospectivity of this unexplored region. The subject workshop and extended abstracts volume represent the culmination of this program of precompetitive geoscience research, and the final release of much of the acquired data. The presentations made here convey the results of a more than $7M investment in new geoscience made by the South Australian and Federal governments for work undertaken in a true geological frontier. The knowledge and data gained have led to a step-change in our understanding of the covered geology of the west of South Australia, and hopefully this improved insight will pave the way for the next major mineral discovery in South Australia.