Wudalianchi

Wudalianchi, formerly Dedu County (德都县), is a county-level city in Heilongjiang province, Northeast China, under the jurisdiction of the prefecture-level city of Heihe. The city is served by Wudalianchi Dedu Airport.

The city's name literal means "five great joint ponds", referring to a set of interconnected volcanogenic lakes formed after the eruption of the Laoheishan (老黑山, means "Old Black Mountain") and Huoshaoshan (火烧山, means "Fire Burn Mountain") volcanoes in 1720–21. The city's territory incorporates part of a volcanic field, which contains a APGN- and UNESCO-listed geopark.

Administrative divisions
Wudalianchi City is divided into 1 subdistrict, 7 towns and 4 townships.
 * 1 subdistrict
 * Qingshan (青山街道)
 * 7 towns
 * Long (龙镇), Heping (和平镇), Wudalianchi (五大连池镇), Shuangquan (双泉镇), Xinfa (新发镇), Tuanjie (团结镇), Xinglong (兴隆镇)
 * 4 townships
 * Jianshe (建设乡), Taiping (太平乡), Xing'an (兴安乡), Zhaoyang (朝阳乡)

Demographics
The population of the district was 355,397 in 1999.