Bas Saharan Basin
The Bas Saharan Basin (Arabic: وادي بس صحران) is an artesian aquifer system which covers most of the Algerian and Tunisian Sahara and extends to Libya, enclosing the whole of the Grand Erg Oriental.
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Wikipedia
The Bas Saharan Basin (Arabic: وادي بس صحران) is an artesian aquifer system which covers most of the Algerian and Tunisian Sahara and extends to Libya, enclosing the whole of the Grand Erg Oriental.