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Hamada
A '''hamada''' (Arabic language|Arabic, حمادة ''ḥammāda'') is a type of desert landscape consisting of largely barren, hard, rocky plateaus, with very little sand.[Geological dictionary, definition of a ''hamada''.] A hamada may sometimes also be called a '''reg (Pronounced ''rej)''''', though this more properly refers to a stony plain rather than a highland.[Geological dictionary, definition of ''reg''.]
Hamadas exist in contrast to Erg (landform)|ergs, which are large areas of shifting sand dunes.[Geological dictionary, definition of ''erg''.]
The world's largest hamada is the ''Hamada du Draa river|Draa'', in the north-west Sahara desert, between Morocco, Algeria and Western Sahara. Hamada areas form 70% of the Sahara desert.
References
McKnight, Tom L. and Darrel Hess. ''Physical Geography: A Landscape Appreciation'', 8th ed., pp. 495-6. Upper Saddle River, NJ: Pearson Education, Inc. 2005. (ISBN 0-13-145139-1)
Category:Deserts and xeric shrublands
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