Vyžuona flowing Rokiškis district., Nemunėlio ds. tributary. Length of 40 km, the catchment area of ​​308 km ². Starts Lukstu area, 10 km š.r. from Rokiškis. Flowing through Ignotiškio and Vyžuona lakes in the wind. and Sat. Flows into the Nemunas River 139 kilometers from its confluence with Mush to Panemunis, 7 km from Pandėlys. Avg. slope of 101 cm / km. Avg. flow above Juodupės 0.92 m³ / s at the mouth 2.62 m³ / s. The river freezes most of the first decade of the end of December at the earliest - in early November.

At higher water levels.

There may be some burr, aquatic vegetation.

WW 0

23.7 Juodupės HE Dam. Height of 6 m, the pond area of ​​83 ha.

23.5 Bridge. Juodupė. The river slowly flowing fields riverbed channeled to the mouth, the banks are low, mostly free of vegetation, but in places overgrown with trees, bushes. In several places the river reaches forests. River width of 10-15 m.

23.1 dš.Juodupė. Avg. slope to Pientaukos 61 cm / km.

21.6 kr.Valeikupis.

21.6 dš.Skardžius.

20.4 kr.Butėniškio creek. kr.Buteniškis.

19.6 dš.Kiemeliškis. By Pientaukos River flowing forest.

18.2 Reinforced concrete bridge.

17.5 dš.Pientauka. Avg. slope to Lakštenos 66 cm / km.

13.9 Rokiškis-Čedasas Bridge. dš.Maneivos. kr.Dirvonai.

13.1 kr.Slabada.

12.5 dš.Lakštena. dš.Trumpiškis. Avg. slope to Papiškių 71 cm / km.

12.1 kr.V-fifth

11.1 dš.Miniava.

10.9 Reinforced concrete bridge. dš.Čedasai. kr.Kunigiškiai.

8.8 dš.Fermos creek.

7.9 kr.V-third dš.Ėnikiai.

6.6 Reinforced concrete bridge. dš.Papiškiai. Avg. slope to the mouth of 38 cm / km.

4.5 dš.Drūčiupis.

4.2 Path Pandel-Nereta Bridge. Naujasodė.

4.0 kr.Valkšna.

3.8 kr.V-first

1.7 kr.Pūškoniai. dš.Viršilai.

1.3 Wooden Bridge. kr.Šilingiškis.

0.0 Vyžuona flows into the Nemunas River.