Introduction to Yinma Spring: Yinma Spring is a spring one kilometer southeast of the sedan chair and 50 meters south of the main highway. There is a spring pool below, 3 meters long and 1.5 meters deep. The spring water is clear and inexhaustible all year round. According to legend, when Wang Mang of the Western Han Dynasty usurped power and established the "New Dynasty", the people suffered so much that the Red Eyebrow Uprising broke out. The army once garrisoned the military tents. The army often drank horses here, hence the name "horse drinking spring".