Cross reference
Judges 1:36
36 And the limit of the Edomites went from the slope of Akrabbim from Sela and up.
Numbers 34:4
4 And round to the south of the slope of Akrabbim, and on to Zin: and its direction will be south of Kadesh-barnea, and it will go as far as Hazar-addar and on to Azmon:
Joshua 15:2-3
2 Their south limit was from the farthest part of the Salt Sea, from the inlet looking to the south:
3 From there it goes south of the slope up to Akrabbim, and on to Zin, then south past Kadesh-barnea, and on by Hezron and up to Addar, turning in the direction of Karka: