Genesis 13:10-12

13:10 Lot looked up and saw the whole region of the Jordan. He noticed that all of it was well-watered (before the Lord obliterated Sodom and Gomorrah) like the garden of the Lord, like the land of Egypt, all the way to Zoar. 13:11 Lot chose for himself the whole region of the Jordan and traveled toward the east.

So the relatives separated from each other. 13:12 Abram settled in the land of Canaan, but Lot settled among the cities of the Jordan plain and pitched his tents next to Sodom.