Wǔzhōu

Wuzhou was a frontier department in the uplands of northwestern Shanxi. Its old walled site in the Wuzhou uplands belongs to the Liao, Jin and Yuan periods, when authority over these uplands changed between northern dynasties. The Jin and Yuan retained the department after its establishment under the Liao. The early Ming abolished Wuzhou, but its old city continued to serve the frontier: troops of the Zhenxi guard were stationed there as an agricultural garrison.