Old Black Mountain and Fire Mountain of Wudalianchi are the main scenic spots of Wudalianchi. They are worth visiting. The traces left by the eruption of the volcano 290 years ago are shocking! There are traces of volcanic eruption everywhere, full of scars, rocks burned into porous black like steel charcoal, the land is burnt black, most places are barren of grass, some places gradually grow green lichens, poplar trees are small, winding, compared with the common poplar across the Weishore, it is extremely ugly, but such poplar trees are said to be after the volcanic eruption. The first batch of plants have been growing for hundreds of years. You can imagine how many songs and sobs the story of the growth of Populus davidiana, how many tribulations it has endured to survive tenaciously, so that it can have today's green and vitality! ______ It is so beautiful and lovely in my eyes! In addition to the remains of volcanic lava, there are a large number of barrier lakes beside the burning mountain. There are small fish, flying ducks, beautiful birds, wild flowers and water plants in the lake. It makes people feel the power of nature. It is more awe of nature and has a deeper understanding of life. It 's a rewarding trip!