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.
Colombana nera of Colombana nera was likely in the posthumous work of the Italian viticulturist Giovan Vettorio Soderini that described a grape known as "San Colombane" growing in Tuscany and Emilia-Romagna in 1600. That early synonym and the grape's current name is believed to be taken from the Abbey of San Colombano in Bobbio where Colombana nera has a long history of being grown. The exact origin of Colombana nera is unknown but DNA evidence showing a parent-offspring relationship between the grape and the old Tuscan wine grape Mammolo suggest that Tuscany may be the variety's homeland. Colombana nera is a late