Kyakhta (Russian: Кя́хта; Buryat: Хяагта, Khyaagta) is a town and the administrative center of Kyakhtinsky District in the Republic of Buryatia, Russia, located on the Kyakhta River near the Mongolia–Russia border. The town stands directly opposite the Mongolian border town of Altanbulag. Population: 20,041 (2010 Census); 18,391 (2002 Census); 18,307 (1989 Census).
Population: 18,431
Latitude: 50° 21' 26.53" N
Longitude: 106° 27' 1.19" E
Altanbulag (Mongolian: Алтанбулаг, golden spring) is a sum (district) of Selenge Province in northern Mongolia. It is located about 25 km from the provincial capital of Sükhbaatar, on the border with Russia opposite the town of Kyakhta.