ADELAIDE.- The first exhibition to chart the evolution of Australias most influential art movement is showing at the Art Gallery of South Australia. Desert Country reveals the extraordinary development of the Australian desert painting movement and the flourishing cross-cultural relationships between Aboriginal artists working in the desert regions of South Australia, Western Australia and the Northern Territory. Through 100 dynamic paintings, Desert Country showcases the enormous diversity of desert art, from the exquisite watercolours of Albert Namatjira, to the ground-breaking canvases of the Papunya Tula artists, and the latest stunning works to emerge from the APY Lands. Among the highlights are the profoundly powerful works by Pitjantjatjara artists, mapping the devastated lands