Pededze

The Pededze (Estonian:Pedetsi jõgi) is a river in Latvia and Estonia. It has a length of 159 km (99 mi) of which in Latvia 131 km and in Estonia 26 km. It flows generally south. It is a right tributary of the Aiviekste, the source of Pededze is Lake Kirikumäe in the Haanja Uplands in Vastseliina Parish, Võru County, Estonia. The basin area of Pededze is 1,690 km² (1,523.3 km² in Latvia; 119 km² in Estonia) and average discharge 12.2 m³/s. Pededze together with Aiviekste forms natural and historical border between Vidzeme and Latgale.