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
Rossola nera grape (frequently with Nebbiolo) where it contributes acidity to the blend. Over the years Rossola nera has been known under a variety of synonyms including: Rossoladure, Rossera, Rossola and Rossolo. However, Vitis International Variety Catalogue (VIVC) managed by the Geilweilerhof Institute for Grape Breeding in Germany currently does not recognize any synonyms for the grape variety. The VIVC does list "Rossola nera" as a recognized synonym of Mourvèdre. Rossola nera Rossola nera is a red Italian wine grape variety that has been growing in the Valtellina region of Lombardy since at least the 17th century. In 2004 DNA profiling determined