After more than a day of driving, the convoy encountered two waves of zombies on the way, and finally arrived at Kuangshan Farm without any danger.

The so-called backing means that the farm is the Xing'an Mountains to the north.

The towering mountains are northwest of the farm, blocking some cold winds from the northern Siberian plains and allowing a small gathering of warm and humid airflow here, so the climatic conditions here are slightly better than those in the surrounding area.

More than 300 kilometers to the east are coal cities, four hundred kilometers to the south are ice cities, and one hundred kilometers to the southwest is flower cities.

There are several county towns around, but the population here is not large.

Because the north and northwest are mountains, the transportation is not so convenient.

The Seven Star River originates in the Xing'an Mountains and flows through the middle of the farm, which nourishes the land.

With a radius of several hundred kilometers, most of them are fertile fields. There was once a gold mine near the Xing'an Mountains.

Ye Fan remembers that when he was a child, he often heard people say that gold can be mined here, but when he grew up, it gradually disappeared. Perhaps the reserves of gold mines were not large.

However, Ye Fan wanted to try it out. Red Alert's mining technology is definitely at the world's leading level. As long as there is a mine, it can be detected by a mine truck.

Ye Fan's convoy arrived at Kuangshan Farm and stopped at the edge of the Qixing River.

Engineer Luo Jiaxin came to Ye Fan with two new engineers.

"Sir, I think the place you chose is pretty good. You see, the mountains in the north are a natural barrier, and the Qixing River can provide us with a continuous source of water. I suggest you build the base at the estuary of the river down the Qixing River and include the upper reaches of the river within the base so that we can ensure that we have inexhaustible drinking water."

"You mean, let the river flow through the base?"

"Yes, water is the source of life. Without sufficient water, it is impossible to ensure survival. We must ensure that the source of water is under our control. This is one of the prerequisites."

Ye Fan admitted that what Luo Jiaxin said made sense, but this resulted in a larger project volume.

The base that accommodates a river can no longer be described as a base, but as a small city.

The project of a single circle of walls is definitely not a small expense. If Luo Jiaxin said, his 100,000 yuan would be far from enough.

Luo Jiaxin was still talking about his plan: "Sir, I don't think you have to think too much about it. The first thing you need to consider is the internal base of our Red Alert Team, for example, you must first determine your residence."

As he said that, Luo Jiaxin took out a prepared drawing.

"Sir, I was doing this work after I told me to design the base map. Yesterday, I had already learned about the general situation after using your intercom to talk to Chen Guanjun's Huang Jie and others."

"First of all, you need to have a core area, located in the safest location of the entire base, our team can re-production if people die, and buildings can be re-builded if they are damaged, but you can't, you are the only one."

Ye Fan nodded, he knew very well.

"So first you determine your own living area, circle a place, and keep it in the future to build your commander's residence. I suggest this place is close to the river, which has easy access to water and good scenery."

"You keep talking." Ye Fan became interested.

"The core area is your residence, and then our internal base of the Red Alert. I suggest that this part is not open to the public, and this part covers a considerable area."

Luo Jiaxin took the drawings to give Ye Fan guidance: "I communicated with Huang Jie that the area of ​​a power plant would cover about tens of thousands of square meters, and the area of ​​a military camp would be even larger. Then this is the construction of radar stations, this is the construction of a tank factory, and the air finger is a large area owner, which needs to be able to take off and land fighter jets."

Ye Fan looked at the dazzling buildings above, and there were also the construction of combat laboratories and nuclear power plants behind them.

Battlefield hospitals, super weapons, and maintenance factories list a large number of them.

"Sir, and I suggest that there must be wall separation between these buildings, and there must be a little further away from the barracks and chariot factories, so as not to affect the rest of the soldiers.

It is best to have a side door near the chariot factory and barracks to facilitate quick dispatch of troops. You cannot go to the area where the survivors are located during wartime."

Ye Fan listened for a while: "Then how big is the area we need for internal areas?"

"It depends on what unit the commander is built according to. If a battalion is about one square kilometer, it will be almost the same. If a regiment, it will take at least three square kilometers, because the barracks need to be expanded to four, and the tank factories need to be expanded, because vehicles also need garages and power plants need to be added. The more buildings there are, the more electricity it needs."

“What if it was a brigade?”

"It will take several times more for a brigade, which may take at least eight or nine square kilometers."

Ye Fan looked around and said that if it were a brigade, this place might not be enough.

Because he not only has the Red Alert Unit, there will be more and more survivors in the future, and even more survivors will be greater than those of the Red Alert Unit.

The cost of the wall is an astronomical figure. Not to mention the ten-meter high wall with a value of 500 gold and one meter, even the five-meter high wall with a value of 100 gold and one meter is a bit unaffordable.

"If this is the case, the internal area is designed according to four square kilometers, which is a strengthening team territory. When the team grows, it will expand. Remember to have a reasonable design and easy to manage separately, and do not affect each other."

"I understand, sir, first of all, please confirm your official residence location, so that we can build a base around this location."

Ye Fan called Han Haoyu, the driver of the armored vehicle, to come over. He, three engineers and two scouts got on the car and drove along the Seven Star River.

After jogging on the river bank for a while, we arrived at the foot of the Xing'an Mountains.

This is where the Qixing River descends. Because the river water erodes, a pool even forms here.

The pool is not too big, about 2,000 square meters, the water quality is extremely clear, and you can even see fish in the water.

There is a silver beach by the river, and there is a gentle slope up the beach, surrounded by birch forests, ginkgo trees, and even a few hawthorn trees.

There is even a thatched hut here, which was built by farm guards when patrolling the mountain, but it is already empty now.

Being able to build a house here is enough to show the beautiful scenery.

"What a great place, I think it's very good."

Ye Fan looked at this gentle slope, and if he built an official residence, he would definitely be the first choice.

There are mountains and waters, and there is a large plain under your feet. In the future, whether it is built into a base or continued farming, it will be a very good place.

This river can even sail in small boats, with roads nearby, and there is a Kuangshan Farm Railway Station seven kilometers away, which allows trains to pass.

As for the approximate location of the abandoned gold mine, it should be in the mountains and should not be far away.

It’s nothing to be farther away, just take a few more trips to the mining car.

"Please determine the center coordinates!"

Ye Fan walked around and finally arrived at the center of the gentle slope.

Stepping on the land: "It's here, this is the center of my official residence. You can start designing according to this coordinate."

"I understand! With this central point construction, according to the proportion of a strengthening group, the inner encirclement covers an area of ​​four square kilometers."

Several engineers moved quickly and began to design.

The engineer started planning, and Ye Fan began to calculate the cost of the wall.

I don't know, I'm shocked when I calculate it.

Ye Fan did not plan to build a ten-meter-high wall, but even a five-meter-high wall costs 100 gold per meter.

Even if it is a rectangular internal area, the circumference reaches 10,000 meters!

The cost of five-meter wall is one million gold!

This does not count the various fences in the internal area, but the price of exterior walls.

Of course, the walls in the survivor's living area cannot be calculated, it is probably an astronomical number.

At first I thought it was a lot of money for 100,000 yuan, but now I see it is too little.

"It turns out that the wall is a big money-making man. It seems that this base can't get it without a few million in a wall."

Just when Ye Fan was at a loss, Nana sent a voice prompt.
Chapter completed!