Zoar

small, a town on the east or south-east of the Dead Sea, to which Lot and his daughters fled from Sodom (Gen 19:22; 19:23). It was originally called Bela (Gen 14:2; 14:8). It is referred to by the prophets Isaiah (Isa 15:5) and Jeremiah (Jer 48:34). Its ruins are still seen at the opening of the ravine of Kerak, the Kir-Moab referred to in (2Kings 3:1etc.), the modern Tell esh-Shaghur.

EBD - Easton's Bible Dictionary