Zizhou or Zi Prefecture (資州) was a zhou (prefecture) in imperial China centering around modern Zizhong County, Sichuan, China. It existed (intermittently) from 587 until 1913.
Geography
The administrative region of Zizhou in the Tang dynasty is in modern eastern Sichuan. It probably includes parts of modern:
References
Zi Prefecture (Sichuan) Wikipedia(Text) CC BY-SA