Anshan (Chinese: 鞍山; pinyin: Ānshān; literally: "saddle mountain") is the third-largest prefecture-level city in Liaoning Province, China. Situated in the central area of the province, Anshan is about 92 kilometres (57 mi) south of Shenyang, the provincial capital. Anshan is on the boundary between the mountains of eastern Liaoning and the plains of the west. The prefecture has a population of 3,584,000 people and covers an area of about 9,252 km2 (3,572 sq mi). The distance from the east to the west of the prefecture is 133 km (83 mi). The area contains the famous Qianshan National Park. The city's name is derived from the shape of a nearby mountain that resembles the shape of a horse's saddle, which can be seen on the left (west) about five minutes before the northbound train arrives at Anshan Station. Anshan is home to the Anshan Iron and Steel Group, one of the largest steel producers in China. Anshan is sister cities with Sheffield, the UK.