Enns (river) below the Enns"). Finally, it meets the Danube at Mauthausen and the city of Enns. The Enns is a typical wild water river and draws its water from an area of more than , which is the fifth-largest in Austria. The average outflow at its mouth is . The Anisian Age in the Triassic Period of geological time is named from Anisus, the Latin name of the river Enns. In the middle of the 19th century, canals began to be built along the between Weißenbach and the Gesäuse, in order to make use of the water for agriculture and forestry.
Rossola nera bunch rot and powdery mildew. In 2000 there were 115 hectares (284 acres) of Rossola nera planted in Italy, the vast majority of it in the Valtellina region of Lombardy and extending all the way to the Swiss border. Here the grape is a minor blending component permitted to account for between 5-25% of the various "Denominazione di origine controllata" (DOC) red wines of Lombardy. In the Valtellina DOC, up to 20% of Rossola nera can be blended into the Nebbiolo-based wine (known locally as "Chiavennasca") provided the grapes are limited to a harvest yield of 12 tonnes/ha. The finished