Zareth-shahar

the splendour of the dawn, a city "in the mount of the valley" (Josh 13:19). It is identified with the ruins of Zara, near the mouth of the Wady Zerka Main, on the eastern shore of the Dead Sea, some 3 miles south of the Callirrhoe. Of this town but little remains. "A few broken basaltic columns and pieces of wall about 200 yards back from the shore, and a ruined fort rather nearer the sea, about the middle of the coast line of the plain, are all that are left" (Tristram's Land of Moab).

EBD - Easton's Bible Dictionary