The Geumho River flows through North Gyeongsang Province, South Korea, and drains into the Nakdong River. It rises in the hilly area of western Pohang, flows west for 116 kilometers before its meeting with the Nakdong in western Daegu. It drains an area of more than 2,000 square kilometers. Notable tributaries include the Sincheon, which flows north through Daegu. The name Geumho-gang means "river of the zither-shaped lake," a reference to its oxbow curve in northern Daegu. Much of the river shore in Daegu has been transformed into parkland. The Geumho has been among the most polluted rivers in South Korea largely because of industrial waste from nearby large-scale dyeing operations. This is especially important because the Geumho is a...