Alt Aluta, or Olt, a northern affluent of the Danube, which rises in the Carpathians of eastern Transylvania, and, after flowing S. and then W., crosses the Carpathians S. of Hermann-stadt, traverses Wallachia, and empties near Turna, opposite Nicopolis. Its entire course is about 380 m. Its principal tributary is the Oltetz, in Wallachia.