Anak
Anak lies on the western side of the fertile Chaeryŏng plain. Its ancient past is visible in the painted Koguryŏ tombs of the district: an inscription in Tomb No. 3 records the career of Tongsu, who died in 357, though the identity of the tomb's occupant remains disputed. Much later, in 1413, the Joseon government confirmed Anak as a county and appointed a magistrate.