After the Central Red Army occupied Luding City, in order to quickly get rid of the pursuers behind and realize the strategic deployment to the north, it chose the inaccessible snowy mountain grassland as the marching route. This is the most difficult part of the Red Army's Long March. At the beginning of June, on 1935, the Red Army began to climb the Jin Jia Mountains at an altitude of more than 4,900 meters. Jin Jia is called "Shenshan" by local people, which means that even birds can't fly except "immortal". In mid-June, the Central Red Army crossed the Jin Jia Mountains, and after a short adjustment, it began to March into the barren grassland in late August. In the vast swamp, there is no road at all. If you are not careful, you will fall into the mire and can't pull out your legs. If there is nothing to eat, kill the mules and horses; After the mules and horses have finished eating, they dig wild vegetables and eat bark and grass roots; After eating the wild vegetables, cook them with a belt. Under such extremely difficult conditions, the officers and men of the Red Army walked through the barren grassland with firm revolutionary beliefs and tenacious revolutionary will. Long March [original poem] The Red Army is not afraid of expedition, and Qianshan is only idle. Wuling makes waves, and Wumeng takes mud pills. Jinsha River is warm in the clouds and cliffs, and Dadu Bridge is cold in the iron bars. I'm glad to see that Minshan Mountain is covered with snow and stretches for miles. Our soldiers crossed it and showed a bright smile. Recalling Qin 'e Loushanguan (1February, 935), the west wind is blowing strongly, and the geese in the sky are called frost morning moon. First frost morning, horseshoe broken, horn swallowed. Xiongguan road is as iron as iron, and now it is still one step away from the beginning. From the beginning, Cangshan was like the sea and the sunset was like blood. "To Comrade Peng" is a six-character poem: "The mountain is high and the road is deep, and the army is vertical to Ma Benteng. Who dares to cross the knife at once? Only I am General Peng! "