Hongyuan County was the snowy mountain grassland passed by the Long March of the Red Army of China, built in 1960, and was named "Hongyuan" by the beloved Premier Zhou Enlai. Hongyuan is located on the eastern edge of the Qinghai-Tibet Plateau of the "World Roof", located in the northwest of Sichuan Province, in the middle of Aba Tibetan and Yi Autonomous Prefecture, 450 kilometers south of Chengdu and 640 kilometers north of Lanzhou. The territory belongs to the two major water systems of the Yangtze River and the Yellow River. The average altitude is more than 3,600 meters, the average annual temperature is 1.1℃, the extreme minimum temperature is minus36.2℃, and the annual rainfall is 753 mm. The county has an area of more than 8,400 square kilometers, and covers 9 townships, 2 towns and 36 administrative villages. The total population is million people, of which Tibetans account for 74 [%] of the total population. It is the only pure animal husbandry county in Aba Prefecture that is mainly concentrated in Tibetans.