 Tartar, Bargushad, Hakari, Okhchuchay and other lesser rivers takes origin in the territory of region and flows into Araz and Kura rivers.Okhchuchay River, the arm of Araz River begins from the territory of Armenia and is hardly polluted with mining wastes.There are many underground mineral and thermal water resources in Kalbajar-Lachin, where most famous ones are Istisu, Minkend, Gotursu, Tutgunchay etc.