Judah's eastern border ran the full length of the Dead Sea. The northern border started at the northern end of the Dead Sea.
The eastern border will begin at Hazar-Enan in the north, then run south to Shepham,
then follow the River Jordan down to the north end of the Dead Sea. The land within those four borders will belong to you.
The southern border will be the Zin Desert and the north-west part of Edom. This border will begin at the south end of the Dead Sea.
From there it went west up to Beth-Hoglah, continued north of Beth-Arabah, and went up to the Monument of Bohan, who belonged to the Reuben tribe.