Guomari Ancient Fort, located west of Longwu River, Tongren County, Huangnan Tibetan Autonomous Prefecture, Qinghai Province, is a village where Turkish Tibetans live, and an ancient castle with a history of more than 900 years, and the oldest and best preserved castle in Tongren Regong area of Qinghai. According to the historical documents of the Song Dynasty, Guo Mari Castle is recorded, especially the Majiayao culture and Qijia culture unearthed by Guo Mari. The activities and residences here can be traced back to 5,000 years ago. The castle originally appeared in Temoko. In the late Tang Dynasty and early Song Dynasty, it moved to this place and has continued to this day. Guo Mari castle is rectangular, 220 meters long and 180 meters wide, there are three gates of East, West and South, and the East Gate is the main entrance. There are still local people living in the castle today. The castle wall is built with earthen boards, and the layout of the lanes is scattered, intricate, walking among them, like coming to a maze. The houses that are reunited together are closely distributed in the castle. The houses here are mostly two-story civil structure buildings, and the courtyard of the courtyard-style residential courtyard. The space looks relatively narrow, which is in contrast to the spacious courtyard of Qinghai Tibetan houses. Between houses, pass by narrow lanes. Walking on the village roads surrounded by high earth walls on both sides, I feel like I am in a maze. People with a bad sense of direction are easy to get lost. It is said that in history, Guo Mari is a castle on the edge of the Tunbing, no wonder it is so strange and complicated and amazing. Now, many of the houses here are locked in the courtyard door, and occasionally encounter local elderly and children in the laneway, and the village is particularly quiet. Through the village, along the hillside, it is feasible to go to Guomari Temple, which is0.5 kilometers south of the ancient castle. Guomari Temple was first built in 1391 during the Ming Wanli period, and is a key national cultural relics protection unit. The tower in front of the temple was built in 1989, covering an area of 1,500 square meters, the tower is 38 meters high, the tower is five floors, the building is unique and magnificent, fully demonstrating the exquisite art of the Tibetan Buddhist architecture of the hot tribute, this is the highest and largest pagoda in the Anduo area, so it is also known as the "Anduo first tower". It is also one of the famous tourist attractions in Tongren County. The main job of the devout elderly people in the village is to turn around and pray for blessings here every day, and to overcome disasters for themselves and their families. The power of faith is endless, they are dedicated to the Buddha, and the footsteps of piety have not stopped.