Are yams and sweet potatoes the same?
mining town, western Liaoning sheng (province), northeastern China. It is located northwest of Daling Stream and east of the Nuluerhu Mountains and is the site of a coal combine. The vertical shafts, which extend nearly 3,280 feet (1,000 metres) into the ground, are among the deepest mines in China. They produce coking coal from a southwestern extension of the Fuxin basin. There are gold and iron mines in the vicinity as well. The presence of the coal-mining industry has urbanized an area of formerly small mountain villages. A county was set up for the area in 1946 and a city in 1985. Factories for food processing and for manufacturing machinery, textiles, chemicals, and building materials have been established. A branch rail line in western Liaonong connects the city with major railways in the province. Pop. (2002 est.) 203,192.