Tyropoeon Valley
From BiblePortal Wikipedia
Easton's Bible Dictionary [1]
The western wall of the temple area rose up from the bottom of this valley to the height of 84 feet, where it was on a level with the area, and above this, and as a continuance of it, the wall of Solomon's cloister rose to the height of about 50 feet, "so that this section of the wall would originally present to view a stupendous mass of masonry scarcely to be surpassed by any mural masonry in the world."
