Yízhāng
Yízhāng sits on the southern slope of Qítián Ridge in the middle Nánlǐng Mountains, on the Húnán side of the border with Guǎngdōng. It began in 617, in the last years of the Suí, as Yìzhāng County, cut from Chēnxiàn. In 976 its first character was changed to Yí to avoid the personal name of Emperor Tàizōng of the Sòng, Zhào Guāngyì, and the county kept the name Yízhāng through the Yuán, Míng and Qīng, a part of the mountain country of Chēnzhōu.