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
Ust-Nera Verkhoyansk) which lays claim to being the northern Pole of Cold, the coldest location in the northern hemisphere. The very dry winters classify this as Koppen "Dwd". <div style="width:81%;"> Ust-Nera was founded in 1937 in conjunction with gold mining and exploration in the Indigirka and Kolyma regions. In the Soviet era, it served as a base for forced labor camps of the gulag. Urban-type settlement status was granted to Ust-Nera in 1950. Within the framework of administrative divisions, the urban-type settlement of Ust-Nera serves as the administrative center of Oymyakonsky District. As an administrative division, it is incorporated within Oymyakonsky