Wubei Zhi (Vol. 86)

Records of Military Preparations original: 武備志, Volume 127. Section on Geography and Mapping: Regional Geography, Part 9.

It is three hundred and fifty-five li a unit of distance roughly equal to 500 meters from the prefectural government seat to the capital, a journey of twenty days. It is two thousand four hundred li to Nanjing.

Pingding Department Governs one county; divided into twenty-two organizational units (bianli); located two hundred and eighty li east of the prefectural capital.
Xin Department Governs one county; divided into sixty-three organizational units; located one hundred and sixty li north of the prefectural capital.
Dai Department Governs three counties; divided into forty-one organizational units; located three hundred and fifty li northeast of the prefectural capital.
Kelan Department Governs two counties; divided into eleven organizational units; located two hundred and eighty li northwest of the prefectural capital.
Baode Department Divided into five organizational units; located fifty-five li northwest of the prefectural capital.
Yangqu County Divided into ninety-five organizational units; attached to the prefectural capital.
Taiyuan County Divided into sixty-seven organizational units; located forty-five li southwest of the prefectural capital.