do (province), northwestern South Korea. It is bounded by the truce line with North Korea (north), by the do of Kangwŏn (east) and Kyŏngsang-puk and Ch'ungch'ŏng-nam (south), and by the Yellow Sea (west). The nation's capital, Seoul, is in the middle of the province but was separated from it administratively in 1946 as a special city. Formerly Kyŏnggi do was the granary of Seoul; the Kyŏnggi plain, with the Han River and its tributaries flowing through it, produced rice, barley, and wheat. Dairying and truck farming and other types of horticulture are still carried on. As Seoul's industrial district has spread into the province's area, and with the construction of highways beginning in the late 1960s, a large part of the province has become the outer industrial region of Seoul. The cities of Anyang, Buchŏn, Sŏngnam, and Ŭijŏngbu have developed as satellites of Seoul, each carrying on various types of industries, such as shipbuilding, iron and steel manufacturing, and plate-glass production. The city of Inch'ŏn serves as Seoul's seaport; the city of Suwŏn is the provincial capital. The sea around Paengnyŏng do and Yŏnp'yŏng (islands) in the Kyŏnggi Gulf offer good fishing grounds for yellow corbinas and croakers. Area 4,196 square miles (10,867 square km). Pop. (1990 prelim.) 6,154,000.