The first blockade: Anyuan and Xinfeng in the southeast in the east, Ganzhou, Nankang and Dayu in the northwest in the west, taking Taojiang as a natural barrier. It is about 120 km long from north to south and about 50 km wide from east to west. The second blockade line is in Renhua County, Shaoguan, northern Guangdong, the third blockade line is on the Guangdong-Han Railway, and the fourth blockade line is the Xiangjiang River between Tian Liang, Hunan and Yizhang on the Hunan-Guangdong border.

These breakthroughs were also the beginning of Mao Zedong's debut, and also laid a leading position later.

Jieshou Town in Xing 'an, Guangxi is the battlefield of Xiangjiang Campaign. The Red Army broke through the fourth blockade of the Kuomintang and fought bloody battles in Xiangjiang River here, but the Red Army suffered heavy losses and lost more than half of its personnel.

Laoshan boundary: Maoershan scenic spot in Guangxi, spanning Xing 'an, Ziyuan and Longsheng counties, with the main peak 2 142 meters above sea level, is known as "the first peak in South China". The first mountain crossed by the Red Army's Long March, the Laoshan Boundary, is in Maoer Mountain.

The first mountain that the Red Army climbed in the Long March was Laoshan. Because Lu's article describing the Red Army's climbing the Laoshan boundary was selected into the middle school textbook, it became famous all over the world. But in Xing 'an, where Maoershan Scenic Administration is located, Maoershan seems to be much more famous than Laoshan. On many maps, only Maoer Mountain is often marked, but the boundary of Laoshan Mountain is not marked. Laoshan Mountain and Maoershan Mountain are both in Yuechengling Mountains (Yuechengling is one of Wuling Mountains). The main peak of Maoershan is 2 142 meters above sea level and is known as the first peak in South China. The five ridges are winding and the blue waves are rippling. I know this is it. The road that the Red Army walked in Laoshan is still there, and there is also the Red Army Pavilion. On the way to Maoer Mountain, if you see a stone tablet on the left, turn right and you will find the road.

After a bitter battle in Xiangjiang River, the Red Army entered the Laoshan boundary through Huajiang Township, Xing 'an, Guangxi. When the Red Army crossed Huajiang River, it was more leisurely than crossing Xiangjiang River and Laoshan Mountain. So there are many things left here about the Long March of the Red Army, including the slogan building of the Pantheon and the tomb of the Red Army martyrs.