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 in northern Italy as well as the "Rossolo" vine from the Trentino-Alto Adige/Südtirol wine region that is often blended with Schiava (Trollinger). Wine expert Oz Clarke notes that there is long standing questions as to whether the "Rossola nera" vines grown in Corsica are the same vines, or closely related, to the Lombardy Rossola nera. Rossola nera is a late-ripening grapevine that can be very vigorous and high yielding if not kept in check by winter pruning or green harvesting. While the vine has good resistance to spring time frost damage, it is susceptible to the viticultural hazards of botrytis