Lake Kubenskoye
The district is elongated from southeast to northwest. Lake Kubenskoye, one of the biggest lakes in Vologda Oblast, is located in the southwestern part of the district. The district border is drawn along the lake so that the district shares the lake with Vologodsky District (a tiny piece of the lake, with the source of the Sukhona River, is also shared with Sokolsky District). With the exception of a short stretch of the Sukhona in the south of the district, and the northwest of the district, which belongs to the Pereshna's basin, a part of the basin of the Onega River, the rest of the area belongs to the basin of Lake Kubenskoye. The rivers in the northern part of the district drain into the Uftyuga River, whereas the central and southern parts belong to the basin of the Kubena River, a major tributary of Lake Kubenskoye. The Kubena enters the district from the east, forms a border between Ust-Kubensky and Sokolsky Districts, and crosses it to the west, forming a river delta at the confluence with Lake Kubenskoye. The "selo" of Ustye is located in the river delta of the Kubena. Kamenny Island, the only island in the middle of Lake Kubenskoye, is a part of the district. The second largest lake in the district, Lake Pereshnoye, is the source of the Pereshna and is divided between Kirillovsky and Ust-Kubinsky Districts.