Seisen

Chosen (Korea) is mountainous and has abundant rainfall and great power resources. An American gold-mining company has a plant of 800 horsepower on a branch of Seisen River and has recently installed a plant of 1,600 horsepower on Kuron River, in northern Chosen.

Source: wiktionary

Privateers of Fleet Air Wing One on 31 July blew up a span of a large railway bridge near the mouth of the Seisen River in Northwest Korea, damaged another railway bridge and two trains and strafed a cannery, grading machinery at an airfield, and small craft along the coast in this area.

Source: wiktionary

At Chinnampo, the mining company’s steam launch, with an old American salt named Captain Barstow, was waiting to take us 75 miles farther north to Anju, the old town on the Seisen River, mentioned many times in the newspapers during the late war.

Source: wiktionary