The Histories · 2.8

From Heliopolis however, as you go up, Egypt is narrow; for on the one side a mountain-range belonging to Arabia stretches along by the side of it, going in a direction from North towards the midday and the South Wind, tending upwards without a break to that which is called the Erythraian Sea, in which range are the stone-quarries which were used in cutting stone for the pyramids at Memphis. On this side then the mountain ends where I have said, and then takes a turn back; and where it is widest, as I was informed, it is a journey of two months across from East to West; and the borders of it which turn towards the East are said to produce frankincense. Such then is the nature of this mountain-range; and on the side of Egypt towards Libya another range extends, rocky and enveloped in sand: in this are the pyramids, and it runs in the same direction as those parts of the Arabian mountains…

Herodotus of Halicarnassus · trans. G. C. Macaulay, 1890
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