Joshua 18:15

15 The south side began at the edge of Kiriath-jearim, and the border extended westward; it went to the spring at the Waters of Nephtoah.

Joshua 18:15 In-Context

13 From there the border went toward Luz, to the southern slope of Luz (that is, Bethel); it then went down by Ataroth-addar, over the hill south of Lower Beth-horon.
14 On the west side, from the hill facing Beth-horon on the south, the border curved, turning southward, and ended at Kiriath-baal (that is, Kiriath-jearim), a city of the descendants of Judah. This was the west side [of their border].
15 The south side began at the edge of Kiriath-jearim, and the border extended westward; it went to the spring at the Waters of Nephtoah.
16 The border descended to the foot of the hill that faces the Valley of Hinnom at the northern end of the Valley of Rephaim. It ran down the Valley of Hinnom toward the south Jebusite slope and downward to En-rogel.
17 It curved northward and went to En-shemesh and on to Geliloth, which is opposite the ascent of Adummim, and continued down to the Stone of Bohan, Reuben's son.
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