Mu PrefectureMuzhou or Mu Prefecture was a zhou in imperial China centering on modern Jiande, Zhejiang, China. It existed from 603 to 1121, when its name changed to Yanzhou.GeographyThe administrative region of Muzhou in the Tang dynasty falls within modern Jiande in western Zhejiang. It probably includes modern:JiandeTonglu CountyChun'an County