Genesis 13:10-13

10 Lot looked up and he saw the valley of the Jordan River, as far as Zoar. He saw that it had lots of water, like the garden of the Lord. It was good land, like the land of Egypt. (This was before the Lord destroyed the cities there called Sodom and Gomorrah.) 11 So Lot chose for himself the valley of the Jordan River. He travelled towards the east.

13:10The Jordan River went from Galilee in the north of Israel to the Salt Sea (Dead Sea) in the south.
13:11Lot chose the land that he thought was the best.

12 Abram stayed in the land of Canaan and he lived there. But Lot lived near the cities that were in the Jordan Valley. He put up his tents near the city of Sodom. 13 The people of Sodom were very wicked. They did not obey the Lord at all.