"The aridity of the North African steppe turns to desolation in the Sahara, the most exten- sive desert in the world. In popular imagination the Sahara is seen as a wilderness of sand
dunes; yet it is a region of most varied landscapes, ranging from the great massifs [high-
lands) of Ahaggar and Tibesti with their extraordinary rock formations and their lofty vol-
canic peaks to vast stretches of gravelly plains or broad belts of constantly shifting dunes.
The desert is not completely waterless - nor is it completely (without) vegetation."
- Robin Hallett, Africa to 1875: A Modern History
Based on this passage, popular views of the Sahara Desert define a-
cultural region
perceptual region.
functional region
formal region.
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