The Great Victoria Desert is Australia’s largest desert, covering an area of 418,800 kmwithin Western Australia and South Australia. Limited research and surveys have been conducted due to vast distances, inaccessibility and the high costs of mobilising people and equipment. There are no major towns in the region. however, there are several Aboriginal communities within, or close to, the region.

The Great Victoria Desert as a bioregion comprises six separate subregions, each of which are defined by common characteristics such as geology, landform patterns, climate, ecological features and plant and animal communities.  The Shield (GVD01) and Central (GVD02) subregions (SCS), located entirely within Western Australia, combine to cover 173,327 km2 of the bioregion and are the focus of the Trust activities.