TSK · Numbers 34:12

Lot lifted up his eyes, and saw all the plain of the Jordan, that it was well-watered everywhere, before Yahweh destroyed Sodom and Gomorrah, like the garden of Yahweh, like the land of Egypt, as you go to Zoar.

Then Yahweh rained on Sodom and on Gomorrah sulfur and fire from Yahweh out of the sky.

then your south quarter shall be from the wilderness of Zin along by the side of Edom, and your south border shall be from the end of the Salt Sea eastward;

The east border was the Salt Sea, even to the end of the Jordan. The border of the north quarter was from the bay of the sea at the end of the Jordan.