What is "wudalianchi"

Wudalianchi , formerly Dedu County , is a county-level city in Heilongjiang province, China. It is under the jurisdiction of the prefecture-level city of Heihe.

The city's name means "five joint ponds" and refers to a set of interconnected lakes formed after the eruption of the volcanoes of Laohei and Huoshao in 1720-21.