The three natural stone arch bridges, Tianlong Bridge, Qinglong Bridge, Heilong Bridge, were all born on the gorge of the Wulong Yangshui River. It has magnificent scale and momentum, with an average height of over 240 meters, a width of over 100 meters. The distances between the three bridges are less than 800 meters. They are series connected and form the world geology wonder of one gorge, three bridges and two pits. The springs: Linear Spring. The spring pours to the ground from the bridge top in one line; Fog Spring. The spring water is spurted from a small hole on the cave top and forms suspending fogs; Pearl Spring. The spring water is sprayed from the over-100-meter-tall bridge top to the ground and scatters like glittering and translucent pearls; Triply Winding Spring. The spring flows from the precipice and winds triply in the "dragon mouth" into the rivulet. Inspired Spring. The spring gushes from the ground and makes musical sounds. The caves: Xianren Cave, Longquan Cave, Seventy-Two-Branch Cave, Mihun Cave. The caves interconnect each other in various forms among the gorges and precipices. The pits: The depths and diameters of the imposing and comely Tianlong Pit and Qinglong Pit between the three bridges are all over 200 meters. The pits and the bridges enhance each other and constitute the magnificent scenery.