What ancient city of Sumer is located across the river from Sweyhat?
Sweyhat:  Also, an Uruk site of Jebel Aruda is located just across the river. Uruk: Uruk (Cuneiform: ; Sumerian: "Unug"; Akkadian: "Uruk"; Arabic: وركاء‎ ‎ , "Warkā' "; Aramaic/Hebrew: "Erech "; Ancient Greek: Ὀρχόη  "Orchoē" , Ὠρύγεια "Ōrugeia ") was an ancient city of Sumer and later Babylonia, situated east of the present bed of the Euphrates river, on the dried-up, ancient channel of the Euphrates River, some 30 km east of modern Samawah, Al-Muthannā, Iraq.
i don't know