Introduction to Fenglong Trough: The river flows to the foot of the "Warrior's Expedition" peak. Due to geological faults, a steep rock is formed in front of the Black Dragon Pool. The uplift of the rock forms a water resistance. Due to the long-term erosion of the water, a magical channel is formed. The water tank is called Fenglong tank. The Phoenix Dragon Groove is about 1 meter wide, more than 30 meters long, and has a vertical height of 8 meters. The turbulent water is like a giant dragon leaping into the dragon trough, rushing and flowing, hitting the trough rock, roaring like thunder, deafening. The rocks that fell down due to the movement of the mountain are stuck on the Phoenix Dragon Cave. There are two rocks that allow people to stand here and watch the Phoenix Dragon Cave. The water flow is turbulent like a flying dragon, and the water splashing in the stone trough is like a flying phoenix, which means the dragon and phoenix are auspicious, so it is called "Phoenix Dragon Trough".