The border continued to the northern slope of Beth-hoglah and came out at the northern bay of the Salt Sea, at the mouth of the Jordan. This was the southern border.
KJV
And the border passed along to the side of Bethhoglah northward: and the outgoings of the border were at the north bay of the salt sea at the south end of Jordan: this [was] the south coast.
ASV
and the border passed along to the side of Beth-hoglah northward; and the goings out of the border were at the north bay of the Salt Sea, at the south end of the Jordan: this was the south border.