The scenery of ancient volcanoes is pleasant. In this area, volcanoes, large and small, are constantly fluctuating, or peaks, or ridges, or high or low, or veins, or independent, and their shapes are extremely spectacular. Mountains, feet and gullies are criss-crossed, with different depths, twists and turns and staggered branches, many of which have springs and excellent water quality. The trees in the mountains are gloomy, and the birds in the forest contend, crisp and pleasant, and sometimes animals such as rabbits, badgers and foxes haunt them. The ancient volcanic group has a long history, which not only breeds rare mineral deposits, but also precipitates rich history and culture. Sapphire, Muyu stone, cyan granite, bentonite and high-quality mineral water have been discovered and exploited in this area. There are rich historical and cultural stories and legends nearby. According to Changle County Records, during the Spring and Autumn Period and the Warring States Period, Qi Weiwang's minister Chunyu Kun was in power here, and Chunyu Kun was a historical figure who was famous for his eloquence. Chunyu Kun and Mencius lived in the same era, but because of their different views, they often quarreled together. There is a saying that Mencius was so angry that he fainted when he saw Chunyu Kun. After his death, Chunyu Kun was buried on the "Fuzi Mountain" in the volcanic group. There are also some beautiful legends, such as Gu Sui Mountain and Xie Zi Mountain, which are widely circulated in the local area. The geology and landforms of ancient volcanic groups are very unique. As an ancient crater that can well record the volcanic eruption landscape of180,000 years ago, it is unique in China and rare in the world, and it is of great value for geological research and tourism appreciation. The crater shows the wonderful and spectacular radial joints of the crater outline from one side, which looks like an inverted folding fan from a distance, and looks like the spectacular scene of volcanic eruption in the past to people with myopia.