Undurnaran Au mineralization area is situated in Saikhandulaan ore district, the NE of the South Gobi Cu-Au metallogenic belt within South Mongolian metallogenic province. Geographically, it is located in Saikhandulaan subprovince area of Dornogovi province 500km SE of Ulaanbaatar, 50m SW of the province center and 45 km SE of the subprovince center.