Kolyma River
The main rivers of the district are the Kolyma River and its tributaries. Most of the territory of the district is part of the Kolyma lowland. The Yukaghir Plateau, reaching a maximum height of at Mount Chubukulakh, rises in the east and some eastern foothills of the Chersky Range to the west, such as the Arga-Tas in the southwest and the Osalin Range in the northwest.