The itinerary passed through the large grassland of Ruoergai, which was passed by the Red Army during the Long March in 1935, and we only walked on the observation deck for a short hundred steps, and we have felt short chest tightness due to the altitude of 3,500 meters and the high wind. It is difficult to imagine how the Red Army soldiers used their faith and perseverance to cross this plateau wetland for more than 500 miles and more than 300 miles wide without food and cold supplies, with the sky as a wetland as a mat. There is only tribute and memory here.