Ma'anshan (simplified Chinese: 马鞍山; traditional Chinese: 馬鞍山; pinyin: Mǎ'ānshān), also written as Maanshan, is a prefecture-level city in the eastern part of Anhui province in Eastern China. An industrial city stretching across the Yangtze River, Ma'anshan borders Hefei to the west, Wuhu to the southwest, and Nanjing to the east. It is a core city of the Nanjing Metropolitan Circle.
As of the 2010 census, Ma'anshan was home to 2,202,899 inhabitants, of whom 1,366,302 lived in the built-up area made of three urban districts and Dangtu County, which is largely urbanized.After the August 2011 administrative re-regionalization of Anhui Province, its population rose to 2.20 million, as two additional counties (He and Hanshan) were placed under its administration.
The south bank of the Yangtze River from Ma'anshan upstream for 240 km (150 mi), has long been a mining area. The coming of a railroad and the opening of the Huai-nan coalfield in the 1930s made it possible for the Japanese to open an iron and steel works in 1938. Although destroyed at the end of the Second World War, the industries were restored to production in 1953, and Ma'anshan grew rapidly under the Communists' first and second Five-Year Plans. Ma'anshan also has sulfur and limestone mines, and chemical and cement factories. In 1954, Ma'anshan was elevated to town level, and, in Oct. 12, 1956, Ma'anshan City was declared to be founded.
Surrounded by low hills (the name of the city means "horse saddle mountain"), Ma'anshan is not as polluted as other major Chinese steelmaking cities, thanks to the environmental policies taken by the local government that granted the city the recognition as one of the "Ten Green Cities of China."
Its climate is similar to other cities in the Yangtze River Delta, with lower humidity that makes its summers and winters less extreme. There are frequent showers during July and August.
Caishi Rock (采石磯), a famous ancient battlefield from the Jin–Song wars lying to the southwest of the city, is regarded as the best of three rocks that project over the Yangtze River. Taibai pavilion is one of four famous pavilions along the Yangtze river. Caishi scenic area is a national tourism spot, with a combination of natural and man-made scenery.