Sun and Moon Mountain: Historical coordinates and natural wonders on the plateau On the east side of Qinghai Lake, there is a standing mountain, Sun and Moon Mountain, which is like a giant dragon across the dividing line between the Loess Plateau and the Qinghai-Tibet Plateau. It is not only an important symbol of natural geography. It is a legendary mountain carrying the history and culture of the millennium, exudes a unique and charming charm, waiting for people to explore and appreciate. Looking out from a distance, the sun and moon mountains are rolling and rolling, the mountain is red, in the sun, as if covered with a layer of gold coat, and the surrounding vast grasslands against each other, forming a majestic picture. The mountains are lush with vegetation, and every summer, green grass and wild flowers are like brocades, like a huge colored carpet spread on the earth, beautiful. Sun Moon Mountain has a deep historical and cultural heritage, which is an important witness to the marriage of Princess Wencheng to Tubu. It is said that when Princess Wencheng left Chang'an for Tubu, Tang Taizong gave her a sun and moon treasure mirror to relieve the pain of homesickness. When the princess went to this mountain, she looked back to the east, and the feelings of missing poured into her heart, and took out the treasure mirror to watch the scene of Chang'an. However, the princess thought that she was shouldering the heavy responsibility of Tang Yu and his relatives, and resolutely threw the treasure mirror down the mountain. The treasure mirror was divided into two, and became the sun mountain and the moon mountain, so the sun and the moon mountain got its name. This beautiful legend adds a touch of romantic and moving color to the Sun Moon Mountain, and makes this mountain a symbol of the integration of Han-Tibet cultural exchanges. Walk along the mountain trail, as if you can see the gentle procession of Princess Wencheng, and hear the melodious camel bells echoing across the valley. Sun Moon Mountain is still an important natural dividing line, which is a watershed between monsoon and non-monsoon, outflow and inflow. The unique geographical location has created its unique climate and ecological environment. On the east side of the mountain, the climate is humid, the moors are crisscrossing, and the scenery of the south of the Yangtze River is blocked; on the west side, the climate is dry and the grassland is wide, showing the majestic atmosphere of the Qinghai-Tibet Plateau. Standing on the top of the mountain, looking far away, one side is lush farmland, one side is the endless grassland, two very different landscapes have a panoramic view, people have to sigh the magic and greatness of nature. In Riyue Mountain, tourists can not only appreciate the natural scenery and history and culture, but also experience the rich folk customs. The local Tibetan compatriots are warm and hospitable, their traditional costumes are brightly colored and handmade; Tibetan singing and dancing are cheerful and full of rich ethnic characteristics. Here, you can taste authentic Tibetan cuisine, such as butter tea, barley cakes, etc., feel the lifestyle of the Tibetan people, and deeply understand the vastness of Tibetan culture. Sun Moon Mountain, this tourist resort integrating natural scenery, history and culture, folk customs, is like a vivid history book, and like a beautiful picture. It witness the vicissitudes of the years, carries the integration of national exchanges, and shows the ghostly work of nature. Whether it is a cultural lover who pursues historical footprints or a traveler who loves the magnificent mountains and rivers, Sun Moon Mountain can bring an unforgettable travel experience and leave a beautiful memory.