The western end of the great Sahara Desert. This true-color image were captured by the Terra and Aqua satellites from November 2002 to April 2003 (NASA). More Images of Africa►
The bull's-eye of the Richat Structure - the barren Gres de Chinguetti Plateau, Mauritania. It represents domally uplifted, layered (sedimentary) rocks that have been eroded by water and wind into the present shape (NASA).
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