How can there be snow in Xiling Snow Mountain … It's all from Sichuan … It's so close to Chengdu … Geographically, shouldn't the temperature in the south be similar … It's altitude.

Every time the altitude rises 100 meters, the temperature drops by about 0.6 degrees. Xuetang, the main peak of Xiling Snow Mountain, is 5364 meters above sea level, nearly 5000 meters higher than Chengdu Plain (about 500 meters above sea level). That is to say, the temperature at the peak is about 30 degrees lower than that in Chengdu. Even when the Chengdu Plain is sultry in summer, it is extremely cold above the main peak of Xiling, and when it rains heavily in summer, the temperature in Chengdu often drops to 20 degrees, which means it is above the main peak of Xiling. There is snow all year round on the main peak of Xiling, and there are two glaciers. When I am at home, I can see the snow on the main peak when the weather is fine in summer.

In fact, not only Xiling Snow Mountain, but all the snow-capped mountains stretch for hundreds of miles west of Chengdu. I don't know if you know this. More than half of Sichuan is plateau (basins and hilly areas are only a small part of Sichuan, which is mainly plateau and mountain), and snow-capped mountains stand everywhere. There are hundreds of snow-capped mountains above 5000 meters above sea level in Sichuan, and there are 28 snow-capped mountains above 6000 meters above sea level. Those three or four kilometers above sea level are countless. The highest peak in Sichuan is Gongga Mountain at an altitude of 7556 meters (the relative height from the foot of the mountain to the top of the mountain exceeds 6000 meters, ranking first in the country! ), Gongga Mountain is a famous mountain in Tibetan areas, which is much more difficult to climb than Mount Everest!

In fact, the Xiling Snow Mountain you mentioned was not originally called Xiling Snow Mountain, but its name was actually Daxuetang, Miaojiling and Daxuefeng. The first two are called Chengdu, and Daxuefeng is called Lushan County, Ya 'an City, but it is actually the same snow mountain, located at the junction of Dayi County, Ya 'an City, Lushan County and Wenchuan County, Aba Prefecture. The name of Xiling Snow Mountain is named after Du Fu's "There are thousands of autumn snows in Xiling", in order to create a "flying water" scenic spot in Dayi County in the 1980s and improve its popularity. In fact, Du Fu's "Xiling" refers to the snow-capped mountains in Qionglai Mountain, which stretches for hundreds of miles to the west of Chengdu, and now this "Xiling Snow Mountain" is just one of them that is not very eye-catching.

To the west of Chengdu Plain, Qionglai Mountain-Dadu River-Daxue Mountain-Yalong River-Shaluli Mountain-Jinsha River from north to south crossed the Jinsha River from Sichuan to Tibet.