Merzouga - Erg Chebbi
village of Merzouga lies Erg
Chebbi in southeastern Morocco. It is one of two Saharan ergs in the
northwest African nation. Its distinctive ergs — large dunes formed
by wind-blown sand — reach up to 150 meters high, and form a
composite erg 22 km long (north-south) and 5 km wide.
Large parts of the Sahara are made up of
such “wandering dunes” that continuously change shape as a
consequence of the shifting of the fine sand.