The southern border began at the edge of Kiriath Jearim on the west, then ran west until it reached the spring, the Waters of Nephtoah. It then descended to the foot of the mountain opposite the Valley of Ben Hinnom (which flanks the Valley of Rephaim to the north), descended to the Hinnom Valley, just south of the Jebusite ridge, and went on to En Rogel. From there it curved north to En Shemesh and Geliloth, opposite the Red Pass (Adummim), down to the Stone of Bohan the son of Reuben, continued toward the north flank of Beth Arabah, then plunged to the Arabah. It then followed the slope of Beth Hoglah north and came out at the northern bay of the Salt Sea—the south end of the Jordan. This was the southern border.