Tsetserleg (Mongolian: Цэцэрлэг, garden) is the capital of Arkhangai Aimag (province) in Mongolia. It lies on the northeastern slopes of the Khangai Mountains, 360 miles (600 km) southwest of Ulaanbaatar. It has a population of 16,553 (2000 census, with Erdenebulgan sum rural territories population was 18,519), 16,618 (2003 est.), 16,300 (2006 est.).