Little is known about the archaeology of Western Sahara, and very little research has been conducted in the territory. However, this situation is changing as the territory begins to open up to foreign researchers.
Monumental burials and associated structures are extremely abundant in Western Sahara. Over 400 such monuments have been recorded in an area of around nine square kilometres north of Tifariti over the past few field seasons of the Western Sahara Project, and reconnaissance surveys indicate that such funerary landscapes are likely to be widespread throughout the territory. It is clear that sometime after about 4000 BCE, cattle herding arrived in Western Sahara as the rest of the region was drying out, raising the possibility that Western Sahara acted as a refuge for people fleeing aridity further east.
More at
http://www.pasthorizonspr.com/index.php/archives/02/2010/the-western-sahara-a-refuge-in-the-desert
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