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This dunes are located in the Drâa-Tafilalet area about 50 km west of the rural town of M'Hamid El Ghizlane, itself located about 98 km south of the town of Zagora. With a length of approximately 40 km to 15 km width, some dunes are around 60m high (significantly less than the dunes at Erg Chebbi with up to 150m), it is the largest and wildest of Morocco.
Because it is relatively difficult to access – it is only accessible by 4x4, camel or on foot – Erg Chigaga remains significantly less visited then Erg Chebbi.