Jiànchāng

Jiànchāng stands on Poyang Lake's western shore, where the Xiū River runs into the lake and Yúnjū Mountain, once called Ōu Mountain, rises behind. The county was cut from Hǎihūn in 104. The Yuán made it Jiànchāng Department in 1295, the Míng reduced it to a county in the early Hóngwǔ years under Nánkāng Prefecture, and the Qīng kept that arrangement. The lake port of Wúchéng, at the river's mouth, was its trading harbor.