Dangjin
Dangjin borders Incheon, Pyeongtaek, and Hwaseong by sea, and Seosan, Yesan, and Asan by land.Its name means "Tang ferry," and refers to the historic role of Dangjin's harbor in connecting Korea to the other side of the Yellow Sea.This role continues to be important in the city's economy, which relies on a mixture of agriculture and heavy industry.Being on the Yellow Sea, the port has been important for trade with China, and since early times was defended against foreign invasion by becoming a fortress city (Eupseong).There are some institution of higher education in the city is Shinsung College (신성대학교), Hoseo University (호서대학교).