Nera (Danube) Nera (Danube) The Nera (, or Нера, ) is a river running through Romania and Serbia. It is a left tributary of the Danube, which it joins near Banatska Palanka. The Nera rises in the Semenic mountains, the easternmost part of the Banat region, south of the city of Reșița, in the Caraș-Severin County of Romania. The river starts at the confluence of headwaters of the Nergana and Nerganița then flows straight to the south from the Piatra Grozbe peak, under which it springs. Reaching the village of Borlovenii Vechi, the Nera turns southwest, flowing between the Semenic and Banat
Salza (Enns) into the Salza and their water is used for the Viennese water supply. Salza (Enns) The Salza (also Mariazeller Salza) is an eastern tributary of the Enns. It originates on the Traisenberg in Lower Austria and flows South of Mariazell through the Styrian nature preserve of "Wildalpener Salzatal". After 90 km, it meets the Enns near Großreifling. Below the town of Weichselboden is the "Prescenyklause", which was constructed with a weir (a small dam) for a saw mill in 1848. Today the water of the reservoir is used to power a small electric power plant. Downstream from the reservoir, the