Introduction to Yinjianggou Hot Spring: It is located 8 kilometers northeast of Hot Spring Street in Aershan City. The hot spring group is exposed at the junction of wetland and grass slope on the west side of the valley. There are 5 springs with a water temperature of 27.7℃. The hot springs have good water quality, no pollution and high medical value. The valleys here are wide and there are large areas of wetlands. The mountains on both sides of the valley are undulating, the forests are dense, the natural landscape is beautiful, and the ecological environment is good.