Eltheké, Gibethon, and Baalath, belonged to Judah; Baalah, Jyim, and Ezem, belonged to Dan.
It appears strange that Eltheké, andc., should be ascribed to Judah, and Baalah, andc., to Dan, when the reverse seems to have been the case, on reference to Joshua 15:29 and 19:44.
I believe that Baalath is Baalah in the construct state, and is, so to say, an abbreviated phrase, and that the other noun belonging to it is to be understood.
And the border compassed from Baalah westward unto mount Seir, and passed along unto the side of mount Jearim, which is Chesalon, on the north side, and went down to Bethshemesh, and passed on to Timnah: (KJV)
And the border compassed from Baalah westward to mount Seir, and passed along to the side of mount Jearim (which is Chesalon) on the north side, and went down to Beth-shemesh, and passed on to Timnah: (WBS)
Joshua 15:10 JPS: And the border turned about from Baalah westward unto mount Seir, and passed along unto the side of mount Jearim on the north--the same is Chesalon--and went down to Beth-shemesh, and passed along by Timnah.