"If you want to enter the hinterland of Hanzhong, several roads are steep and steep, making it difficult to navigate!"
Then, Feng Yi introduced the road conditions from Yongliang to Shu.
The first Tangluo Road. To take this road from the south of Chang'an, you must first pass through the Xiluo Valley in Zhouzhi County. In the middle, you must pass through the Xiluogu River, Heishui, Sushui, Youshui, Tangshui and other river valleys, and cross the Xiluo Valley River and Heishui River.
There are four or five mountains including Shibapanling between the rivers, the main ridge of the Qinling Mountains between Heishui and Sishui, Xinglongling between Sishui and Youshui, Niuling and Guanlingliang between Youshui and Tangshui.
Big mountains.
Compared with the remaining roads, although the Tangluo Road has the advantage of being short and quick, the mountains climbed on the way are much higher than the other roads, making the road extremely difficult and dangerous.
The mountains of Shibapan and Laojunling near Luogu Pass are steep. The road from Laojunling to Dudumen winds between the tributaries of the Heihe River on the south side of Taibai Mountain, the main peak of the Qinling Mountains. It rises and falls in the primeval forest where there are sparse people and wild beasts.
.The territory of Zhenfu County in Yangzhou has eighty-four pans that bend for 84 miles. Not only are there "endless fences lingering, and dangerous stacks are endless", but there are also dangerous areas called "Yellow Springs", which are full of poisonous insects and ferocious beasts, and pedestrians are afraid of the road.
It can be said that compared to other roads, this road is closer. However, it is still more dangerous.
The second Baoxie Ancient Road starts from the mouth of Bao Valley in the south and ends at the mouth of Xi Valley in the north. It runs along the Bao and Xie Rivers and runs through the entire Qinling Mountains. It is about 400 miles long and avoids many dangerous peaks. It is considered a road.
An easier river valley road!
In the past, when King Wen of Zhou Dynasty visited Bashu, he went south along the Baoxie Ancient Road. During the Warring States Period and King Zhaoxiang of Qin, he spent a lot of manpower and material resources on the cliffs he passed.
The plank road is known as "the plank road is thousands of miles long and can lead to everything", and it firmly controls the Bashu region!
The third ancient road, also known as the "Chencang Road", runs from Guanzhong to Chencang to the southwest out of Dashanguan, along the valley road in the upper reaches of the Jialing River, turns southeast and enters the Bao Valley. After exiting the valley mouth, it reaches the hinterland of Hanzhong.
In the past, Liu Bang was named the King of Han. He was not willing to live in Bashu, so he worshiped Han Xin as his general. He built a plank road openly and secretly visited Chencang. It was through this road that the army entered Guanzhong, annihilated the "Three Qin Kings" in one fell swoop, and went east to compete with Xiang Yu for the world!
As the main road into Shu, Liu Che was most prepared for Chencang Road. Besides, when his ancestors made their fortune, they left a strong mark on this ancient road. There is such a historical reason.
Today, it is normal for Liu Che to pay more attention to this ancient road.
The fourth road, Ziwu Road, is named because it passes through the Ziwu Valley and the direction of the road starting from Chang'an south is north-south.
After Liu Bang, the emperor of the Han Dynasty, went to Hanzhong and sent Zhang Liang to burn the Ziwu Plank Road, in the fifth year of Emperor Ping's reign, Wang Mang ordered the construction of the Ziwu Road and the construction of Ziwu Pass.
During the Qin and Han Dynasties, when transporting supplies from Sichuan and Hanzhong to Xianyang or Chang'an, the capital, the Baoxie Road and the Old Road were mostly used instead of the Ziwu Road. Like the Tangluo Road, it was possible for small groups of troops to advance, but it was not suitable for large groups of troops.
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The fifth road, the army goes all the way west from Chang'an, enters Jieting and Tianshui County in Xiliang area, goes south over the towering Qishan Mountains, then goes east to Jianwei, Hechi, Baima garrison... and finally enters the hinterland of Hanzhong!
This road is the most remote, requiring a detour of thousands of miles, but the road is relatively easy to walk. Along the way, the water is sweet, the soil is thick, and the population is large. The army can collect grain and grass along the way, reducing the pressure on logistical supplies!
In the past, Zhuge Liang was talking about this place when he came out of Qishan.
"Everyone, please take a look. There are many mountain roads and canyons in Hanzhong, all connected by plank roads. This is the model of plank roads..."
Feng Yi has a unique talent, and he also does a lot of homework. He also has a thorough study of the mountains, rivers, terrain, customs and customs of Bashu, and what he says is clear and logical.
Moreover, they were extremely well prepared, and even asked people to make a model of the plank road based on the idea of a sand table, explaining in detail its design, construction, use...as well as its various advantages and disadvantages!
The Hanzhong area is surrounded by steep mountains and river valleys. There is no Yangguan Road to walk on, so we had to spend countless manpower to build plank roads on the cliffs using the method of "burning with fire and stimulating with water"!
The method is: when encountering large rocks blocking the road, first burn them with fire, then pour cold water on them, and after the rocks are soft and soft, use a giant hammer to break them...
If you encounter a cliff, you will drill holes in the cliff, set up crossbars, lay wooden planks, and then connect them together with pliers. If you encounter a trail, you will drive piles and erect fences and build stone railings on the side of the road for safety...
Every twenty or thirty miles, a plank pavilion will be built in an open area with water, and a large number of houses and warehouses will be built for pedestrians to rest, stay, and avoid bad weather!
With such wisdom, the ancients opened roads in the mountains and connected Guanzhong, Hanzhong, and Bashu into a whole. However, although the plank roads are exquisite, they have several major shortcomings:
First of all, the plank road is built along the cliffs, hanging high in the air. Below is either an abyss or a rushing river. It is frightening to look at it, and you will tremble when you walk. If you fall, you will definitely die!
Secondly, most of the plank roads are wooden structures, so the load-bearing capacity is limited. Only infantry, horses, and carts can be used... and the team must be lengthened to reduce the pressure on the feet. Four horses, heavy chariots, and heavy siege equipment cannot pass.
of!
It is precisely because of this that it is not easy to invade the Bashu land, but it is equally difficult to fight out from the Bashu land. This logistical pressure is really frightening.
Finally, there is a lot of rain in the Yizhou area, the wood is easy to rot, and there are often falling rocks in the mountains. Therefore, the plank road is easily damaged, and it is often repaired while walking. I don’t know how many lives have been lost!
Therefore, people all over the world say: 'Walking on the middle road of Shu is like approaching the gate of hell. Ten people go out, and nine do not return home. White bones hang in the mountain streams, and ghosts cry in the abyss. If you want to survive, step back and walk far away!'
It is precisely because of this that generations of writers have left behind eternal sayings similar to "The road to Shu is difficult, and it is difficult to reach the sky."
"Hiss!" After hearing Feng Yi's description, many generals took a breath of cold air.
Although everyone had heard about the dangers of Shu in the past, they had no real awareness of it. Today, after listening to Feng Yi's story, I felt like I had a glimpse of the situation.
If the enemy ambushes a detachment of troops in a dangerous place, commands a commanding position, and outflanks them from the front and back, then they may never return!
Fortunately, there were Wang Jian, Wu Qi and their troops in the direction of Jingzhou to cooperate and attack from multiple directions. If we only attack from Yongliang and Liang two places, if we are not careful, maybe it will really happen.