Joshua 18:15

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.

Joshua 15:9

Then the border was drawn from the top of the hill to the fountain of the water of Nephtoah, and went out to the cities of Mount Ephron; and the border was drawn to Baalah, which is Kirjath-jearim:

Treasury of Scripture Knowledge

Summary

And the south quarter was from the end of Kirjathjearim, and the border went out on the west, and went out to the well of waters of Nephtoah:

Nephtoah

Bible References

Nephtoah

Joshua 15:9
Then the border was drawn from the top of the hill to the fountain of the water of Nephtoah, and went out to the cities of Mount Ephron; and the border was drawn to Baalah, which is Kirjath-jearim: