Ichon

Ich'ŏn lies in the mountainous interior west of P'yŏnggang, where the Imjin River and its tributaries pass through valleys and small basins. Under Koryŏ it was a dependency of Tongju, later Ch'ŏrwŏn. The Joseon government transferred it to Kangwŏn in 1413. It was raised to the rank of a protectorate in 1608, reduced again in 1623 and promoted once more in 1687.