National Geographic : 1935 Feb
THE ROSE-RED CITY OF ROCK A WHOLE MOUNTAIN TOP HAS BEEN QUARRIED AWAY TO LEAVE TWO OBELISKS What toil this summit of Zibb Atuf must have seen when Nabatean workmen hewed it ! Beyond, to the extreme left, on a small rock hill, is the Great High Place of Sacrifice (see page 158). EROSION HAS SUPPLEMENTED THE NABATEANS' CLIFF CARVING Winds and rains, frost and summer heat work fantastic designs in the highly colored rock veinings. Some of the openings on the lower slopes of El Khubdha, opposite the amphitheater (page 147) are man-made tombs; others are the work of Nature.