Tyropoeon Valley

(i.e., "Valley of the Cheesemongers"), the name given by
Josephus the historian to the valley or rugged ravine which in
ancient times separated Mount Moriah from Mount Zion. This
valley, now filled up with a vast accumulation of rubbish, and
almost a plain, was spanned by bridges, the most noted of which
was Zion Bridge, which was probably the ordinary means of
communication between the royal palace on Zion and the temple. A
fragment of the arch (q.v.) of this bridge (called "Robinson's
Arch"), where it projects from the sanctuary wall, was
discovered by Robinson in 1839. This arch was destroyed by the
Romans when Jerusalem was taken.

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."