Мста
The district is split between several drainage basins. The rivers in the northwestern part drain into the Pchyozhva and Oskuya Rivers, left tributaries of the Volkhov. The north of the district lies in the basins of the Syas River and its right tributary, the Volozhba. The center and the south belong to the basin of the Msta River, which crosses the southern part of the district. The principal tributary of the Msta within the district is the Mda, which crosses the whole district from south to north, makes a U-turn near Nebolchi, flows south, and joins the Msta from the right. The rivers in the eastern areas of the district drain into the Pes River. Since the Pes belongs to the basin of the Volga, and the Syas, the Pchyovzha, and the Msta all belong to the basin of the Neva, the district is crossed by the divide between the basins of the Atlantic Ocean and the Caspian Sea.