 Tartar is the left tributary of Kura, the largest river in Caucasus.The river originates in the area where Qonqur, Alaköz and Mıxtökən
mountain ranges meet on Karabakh Plateau in the vicinity of hot springs village of Istisu located de jure in Kalbajar Rayon of
Azerbaijan and de facto in Martakert Province of Nagorno-Karabakh Republic.The altitude where the river originates from mountain springs is above sea level.