Joshua 18:15 in the King James Version
And the south quarter was from the end of Kirjath-jearim, and the border went out on the west, and went out to the well of waters of Nephtoah:
Context
14 The border extended, and turned around on the west quarter southward, from the mountain that lies before Beth Horon southward; and ended at Kiriath Baal (also called Kiriath Jearim), a city of the children of Judah. This was the west quarter.
15 The south quarter was from the farthest part of Kiriath Jearim. The border went out westward, and went out to the spring of the waters of Nephtoah.
16 The border went down to the farthest part of the mountain that lies before the valley of the son of Hinnom, which is in the valley of Rephaim northward. It went down to the valley of Hinnom, to the side of the Jebusite southward, and went down to En Rogel.