Stock Photo - Cones of salt obtained from The Great Salt Mines, Oasis of Bilma, Niger, Sahara. Taken during the expedition led by Captain Angus Buchanan to the Sahel region of the Sahara in 1922-23. A film shot during the expedition, 'Crossing the Great Sahara', records the 3500 mile journey, which began in Kano, in Northern Nigeria early in 1922 and ended in Tougourt, Algeria in April 1923. Buchanan had previously led an expedition into the Sahara in 1919-1920.

Stock Photo: Cones of salt obtained from The Great Salt Mines, Oasis of Bilma, Niger, Sahara. Taken during the expedition led by Captain Angus Buchanan to the Sahel region.

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