"Rear Area" as the continued practice of the artillery school project, it turns and extends the focus
to the investigation and retrospect of the local spatial history and technological change itself.
It involves the history of the war of resistance against Japan, the strategic affiliation
under the background of the Cold War and the post-Cold War, and the Third Front Construction in Southwest China. During this period, the concept of the "rear area” also changed
its form at different historical and social moments, which constantly consolidated and deepened,
ghostly embedded in the geological surface of Chongqing.