Speaking of volcanoes, there is still an important active volcano since the 20th century. According to statistics, there are at least 250 known human beings on our planet, of which more than 60% are distributed in various island countries in North and South America and the Pacific Ocean, such as Indonesia, Japan, the United States, Chile, Nicaragua and Guatemala. The eruption of active volcano will undoubtedly bring all kinds of disasters, but contemporary human beings admire and appreciate it as a magnificent natural landscape. What's more, many countries and regions take the occasional eruption and agitation of these active volcanoes as a rare tourist resource, which can not only satisfy people's curious psychological and sensory enjoyment, but more importantly, enable them to acquire a lot of scientific knowledge and deepen their understanding of the earth where we have lived for generations. As a result, dozens of such active volcano tourist attractions or Hawaiian hawaii volcanoes national park have appeared in the world. For example, in the United States, there are lassen volcanic national park in California, hawaii volcanoes national park in Hawaii, and Mount St. hellens in Washington. In the Philippines, there are Apo, Hawaii, hawaii volcanoes national park and Mayon Volcano. In Costa Rica and El Salvador, there are Mount Erasmus and Mount Isacco. In order to meet the needs of tourists from all over the world to visit Mount Etna in Italy, Italy even set up a sightseeing cableway with a length of more than 4 kilometers at the top of the volcano in the 1960s, allowing tourists to sit on the movable cable car and see the crater better and closer. The number of local people engaged in volcanic tourism has actually reached around 300,000. There are active volcanoes and residual volcanoes in the world. For example, there is the Ngoro Crater Wildlife Park in Tanzania, and there used to be a tourist attraction similar to the volcanic landscape of Carrada in the former Soviet Union. Datong volcano-to be precise, this is an extinct volcanic community, with more than 30 complete and beautiful volcanic cones within about 900 square kilometers. This huge volcanic family belongs to the typical remains of Quaternary volcanic movement, and their location is just in the east wing of the flat and wide Datong Basin and the river valley in the middle reaches of Sanggan River. Geologists and geographers divide Datong Volcano Group into east, west, south and north according to its location, among which West Volcano, located in the northeast of datong county today, is the most dense and spectacular part of the volcanic cone landscape. Most of them are between 1 100 m and 1400 m above sea level, probably because of the flat and wide valley landform. These volcanic cones rise abruptly like underground ghosts, and most of them show a kind of strength and mystery. The most famous ones are Jinshan, Heishan, Langwo Mountain, Gelao Mountain, Shuang Shan, Mati Mountain, Tiger Mountain and Haotian Temple Mountain.