Firn
Yulong Snow Mountain is a mountain range covered with snow all year round on the nearest equator in the northern hemisphere. It is juxtaposed with the Zhongdian Snow Mountain on the west and Mianmian Mountain on the east across the river. It extends from Sanjiangkou in the north to 27°N latitude in the south. The 13 peaks of the whole mountain are arranged longitudinally from south to north. The highest peak of the main peak-Shanzi Peak is 5,596 meters above sea level, with snow all year round, and the height of the snow line is between 4800 and 5000 meters.There are temperate marine glaciers on the Eurasian continent that are closest to the equator.