The tunnel on the mountain of Balang is about more than 3,800 meters above sea level. I heard that the highest place of Balang Mountain is more than 5,000 meters. The photo was taken from Siguniang Mountain to Dujiangyan. Before entering the tunnel, the weather on the side of Siguniang Mountain was clear. After passing through the tunnel, the weather was cloudy and cloudy. The tunnel was towards Dujiangyan. There is a long road, all on the mountainside, one side is a cliff, the other is a high steep slope, the slope is the scenery of the grassland, look at the photos on the Internet, it is very beautiful when it blooms, there are parking tourists along the road, Balang Mountain has a stone monument of the panda's top, I thought I could see it along the road, but later I realized that I needed to go from the direction of Dujiangyan to enter the tunnel before taking a section of the old road over the Balang Mountain to see.