Discover

The 'Kuiseb River' in Namibia is bordered on one side by the tallest sand dunes in the world, and on the other by barren rock. The red sand dunes south of the river reach heights over 150 meters. The prevailing winds blow the dunes northward, but their movement is blocked by the river. In the process, so much sand and silt is deposited in the Kuiseb that it only reaches the sea while it is in flood.

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Reference

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External links

Reference

★ ''The original entry was from the NASA Earth Observatory [1]''

See also

★ List of rivers of Africa

External links

★ NASA Earth Explorer page