Which desert along northern Chile is famous as the driest non-polar desert?

The desert along northern Chile famed as the driest non-polar desert is the Atacama Desert.

The Atacama occupies a long, narrow strip along the Pacific coast of northern Chile, stretching for about 1,600 kilometres. It lies between the Chilean Coastal Range and the Andes, whose elevations block moisture from both the Pacific and the Amazon Basin. The cold Humboldt Current also stabilizes the atmosphere and limits rainfall, helping produce the desert’s extraordinary aridity.

Some parts of the Atacama receive only a few millimetres of rain annually, and certain weather stations have recorded no rainfall for years. The landscape includes salt flats, gravel plains, volcanoes, dunes, and mineral-rich basins. Coastal fog called camanchaca can provide limited moisture, allowing specialized plants and animals to survive in otherwise barren areas.

The Atacama is often described as the driest place on Earth, though the McMurdo Dry Valleys in Antarctica are drier in specific locations. Its Mars-like terrain has made it useful for testing instruments and techniques for future planetary missions. The desert also contains major deposits of copper, lithium, nitrates, and other minerals.