Nera (Danube) basin and it is not navigable. After the filling of the artificial Lake Đerdap, as a result of the Iron Gate I Hydroelectric Power Station which was finished in 1972, the mouth of the river into the Danube was flooded. In order to allow the optimal electricity production, the water level of the Nera at the mouth should not go below , while it must not exceed it if the flooding of the banks is to be avoided. Since the mid-1990s, there are significant problems in fixing the river's level, as the process is costly and complicated. In 2018, representatives
Lech (Vorarlberg) is in the winter, Lech nevertheless has much to offer the summer visitor, in terms of sporting, cultural, culinary and other activities. There are many premier hotels in Lech, as well as numerous top class restaurants. One former well-known visitor was the writer Ludwig Bemelmans (author of the Madeline books), whose 1949 novel "The Eye of God" was set in a fictionalised Lech. Lech has a number of points of cultural interest, including: There are numerous events happening in Lech. Lech is at the center of the thriller "An Exchange of Eagles" by Owen Sela, in which a group of