Enns (river) Enns (river) The Enns is a southern tributary of the Danube River, joining northward at Enns, Austria. The Enns River spans , in a flat-J-shape. It flows from its source near the towns of Gasthofalm and Flachau, generally eastward through Radstadt, Schladming, and Liezen, then turns north near Hieflau, to flow past Weyer and Ternberg through Steyr, and further north to the Danube at Enns ("see map in References"). The Enns has its source in the Radstädter Tauern mountains in the Austrian state of Salzburg. In a valley which developed during the ice age, it flows at the border between
River Rhondda 1970s the river has been steadily improving in quality largely due to the closure of all the coal mines and through the investment in sewerage and sewage treatment. River Rhondda The River Rhondda () is a river in the Rhondda Valley, South Wales which has two major tributaries; the Rhondda Fawr () and the Rhondda Fach (). The river has two major tributaries: the Rhondda Fawr and the Rhondda Fach (respectively, the "big" and "little" Rhondda). Despite these names, both tributaries are of similar length. Both valleys display the U-shape cross-sections typical of glaciated valleys, having been eroded during successive