Yanjin County, belonging to Zhaotong City, Yunnan Province, is located at the junction of Yun Chuan in the northeast of Yunnan, in the middle of Zhaotong and Yibin, bordering Junlian, Gaoxian and Xuzhou in Sichuan in the northeast, Yiliang in Yunnan in the south, Daguan, Yongshan and Suijiang in Yunnan in the west and Shuifu County in the north. The county is long and narrow from north to south and slightly narrow from east to west, with a maximum vertical distance of 62.5 kilometers and a maximum horizontal distance of 46 kilometers.

Yanjin County is named after a salt well producing salt and a ferry crossing the flood season. Yanjin County, belonging to Zhaotong City, Yunnan Province, is located at the junction of Yun Chuan in the northeast of Yunnan, in the middle of Zhaotong and Yibin, bordering Junlian, Gaoxian and Xuzhou in Sichuan in the northeast, Yiliang in Yunnan in the south, Daguan, Yongshan and Suijiang in Yunnan in the west and Shuifu County in the north. The county is long and narrow from north to south and slightly narrow from east to west, with a maximum vertical distance of 62.5 kilometers and a maximum horizontal distance of 46 kilometers.

Yanjin County is the ancient residence of Bo people. Xia, Shang and Zhou belong to Liangzhou, and the latter few are easy to belong to. In 587 AD, Kaibian County was established, and Tantou Township is the seat of the market town. 1727, the land changed to flow, and the metal wumeng mansion was performed. 19 17, the county was formally established and named Yanjin.

Geographical environment of Yanjin county

Yanjin is located on the northern slope of Wumeng Mountain in the northeast plateau of Dianchi Lake, with high terrain in the southwest and low terrain in the northeast. The county mountain range belongs to the northern branch of Wumeng Mountain, bounded by Guanhe River, and can be divided into Hedong and Hexi mountains.

It is a three-dimensional monsoon climate in which subtropical zone and temperate zone coexist. It is hot in summer, warm in winter, abundant in rainfall, humid in climate, with distinct dry and wet seasons (dry season 165438+ 10 to April of the following year, rainy season from May to 65438+ 10), long frost-free period, plenty of clouds and sunshine. The extreme maximum temperature in the county is 4 1.8℃, and the minimum temperature is -2.5℃. The annual average temperature 17℃ (highest 17.9℃, lowest 16.3℃), frost-free period of 328 days, annual average sunshine of 966 hours (highest 1296 hours, lowest 652 hours), sunshine rate of 22%.

Refer to the above content: Baidu Encyclopedia-Yanjin County