Which region of northern Chile in South Africa supports a very small population and is rich in deposit of copper and sodium nitrate

The Atacama desert is a cool, arid region in northern Chile.

It is a rich deposit of copper and other minerals. The Escondida copper-gold-silver mine, located on the north of the desert, produces more copper than any other mine in the world.

This is also the world's largest natural supply of sodium nitrate.