ocr: walls except in one place. Here an earth- quake fissure has been enlarged by running water, forming the Siq, or Gorge, the most famous and spectacular entrance to the site. To the north and south, however, the country is more open, and broad wadis provide the main caravan routes to and from the city. In one direction these routes lead up to the plateau and to the main Arabian trade route that runs along its edge: the King's Highway of the Bible and the modern Pilgrims' Way to Mecca. In the other direc- tion the tracks run south down into the Arabah and across to Palestine and Egypt. Yet even f ...
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