Huanglong Scenic Area, World Natural Heritage, World Man and Biosphere Reserve, located in Songpan County, Aba Tibetan and Qiang Autonomous Prefecture, Sichuan Province, is the only well-protected plateau wetland in China, 100 kilometers away from Jiuzhaigou, with an altitude of 1700-5588 meters. It is the mountain gorge. Because there are many pots in the ditch, with the change of surrounding scenery and the change of the angle of sunlight, the colorful colors are changed. It is known as the Hua Yao Pool, and Huanglong is famous for the four musts of colored pools, snow mountains, canyons and forests. Yu Shi, together with the beach, the ancient temple, and the folk custom are called "seven musts." The scenic spot is composed of Huanglonggou, Danyun Gorge, Munigou, Xuebaoding, Xueshanliang, Hongxingyan, Xigou and other scenic spots. The main scenic spot Huanglonggou is located at the top of the main peak of Lushan Mountain, facing the source of the Minjiang River, which is like the Chinese people. The image of the "Dragon" has always been referred to as the "Chinese symbol." Huanglong is dominated by the surface travertine landscape with large scale, exquisite structure and rich colors. It is famous for its rare karst landforms. Full season ticket: 170 yuan / person; peak season discount ticket: 85 yuan / person. Execution time: April 1st to November 15th every year. (Note: Implemented on September 20, 2018). off-season full-price ticket: 60 yuan / person; off-season discount ticket: 30 yuan / person. Execution time: Every year from November 16th to March 31st.