The geology of South Australia examines the composition and state of its rocks. This includes the processes that act upon the land and its geographical features overtime. It may also extend to humanity's relationship with the land, especially its Aboriginal peoples. Certain geological features such as Mount Gambier have strong economic benefits for its local inhabitants, namely the residents of the city Mount Gambier. The economic value of the land has been a point of discussion for industrial development to capitalise on the rich resources, particularly minerals, found within South Australia's geological features. Many of these features remain well preserved and protected, as of 2020.