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.
Congo River for the lack of bridges crossing the main rivers, although there are a number of ferries available for crossing the great "Congo river" and the major tributaries. The main reasoning is the mere width of the Congo river and main rivers, and the second is the lack of funds to set up permanent river crossings, this is however slowly changing to the better. There are only two bridges on the Congo river proper and main tributaries, which both are found in the DR Congo: There is one bridge on the Uele River, and two on the Kibali River, which all