Original: Once a coastal city near the mouth of the Euphrates on the Persian Gulf, Ur is now well inland, south of the Euphrates on its right bank, 16 k from Nasiriyah.
Simplified: Once a coastal city near the mouth of the then Euphrates river on the Persian Gulf, Ur is now well inland, south of the Euphrates on its right bank, 16 k from Nasiriyah, Iraq.