Gihon Spring
Secondly, the first expansion of Jerusalem came in the 9th century BCE, perhaps in its second half, when the town grew significantly in a southerly direction. Remains of the Iron IIA were unearthed south of al-Aqsa Mosque, above the Gihon Spring and to the south of the Dung Gate of the Old City. In parallel to this development, Judah expanded to the Shephelah in the west and Beer-sheba Valley in the south, and for the first time became a territorial kingdom rather than a city-state restricted to the highlands.