Ghardaia (Mzab)

Ghardaia, in the Mzab valley of the northern Algerian Sahara, is the principal town of the Mzab, a cluster of fortified oasis-towns that is the historic heartland of the Ibadi community in Algeria. The Ibadi scholar Muhammad ibn Yusuf Atfayyish (d. 1914), the leading modern Ibadi authority, came from and worked in the Mzab.