[1] During the Spring and Autumn period, the region was known as Fangzhu (Chinese: 防渚; pinyin: Fángzhǔ).

[2] The lowest part of the county is Jiangjiapo (Chinese: 姜家坡), in Damuchang [zh], which stands 180 metres (590 ft) above sea level.

[2] The highest part of the county is Guanjiaya (Chinese: 关家垭), in Shangkan Township [zh], which stands 2,485.6 metres (8,155 ft) above sea level.

[5][6] In March 2012, Langkou Township (Chinese: 榔口乡; pinyin: Lángkǒu Xiāng) was abolished, and merged into the town of Yinjifu.

[1] Mineral deposits in the county include copper, iron, lead, zinc, phosphorus, sulfur, coal, and gypsum.