Han. 1 River of S China, 210 mi (338 km) long, rising in W Fujian prov. and flowing S through Guangdong prov. to the South China Sea at Shantou; navigable for about 100 mi (160 km) upstream. The densely populated delta is a rich agricultural area; two crops of rice are grown annually. Manganese and tungsten are mined in the upper valley. 2 River of central China, c.700 mi (1,130 km) long, rising in SW Shaanxi prov. and flowing E between the Qinling and the Daba mts., then SE through Hubei prov. to join the Chang at Wuhan; navigable for about 300 mi (480 km) upstream. The river floods its fertile lower valley in summer. There is a hydroelectric power station near Xiangfan, Hubei prov.