. Siddim

All these were joined together in the vale of Siddim,
which is the salt sea.
Genesis 14:3 KJV

And there went out the king of Sodom,
and the king of Gomorrah,
and the king of Admah,
and the king of Zeboiim,
and the king of Bela (the same is Zoar;)
and they joined battle with them in the vale of Siddim;
Genesis 14:8 KJV

And the vale of Siddim was full of slime pits;
and the kings of Sodom and Gomorrah fled,
and fell there;
and they that remained fled to the mountain.
Genesis 14:10 KJV