In the huge valley with towering peaks on all sides, the warm sunshine was blocked by the towering peaks. The cold wind poured in from the only canyon that entered and exited. After entering the valley, it became messy and made a buzzing echo. The spring water at the foot of the mountain gushes and slowly flowed along the edge of the cliff. Luo Zheng looked at Cao Xi who was walking in a hurry, and knew that he had already reached a conclusion, so he couldn't help but meet him.

"Boss." Cao Xi said excitedly.

"Tell me, what are your conclusions and basis?" Luo Zheng asked.

"The conclusion is that this place can be used as a base, with three basis points." Cao Xi said happily: "First point, this place is large enough that the air can flow backwards from the canyon, and then spreads and rises to the sky. The enemy cannot launch an attack from the top of the mountain with poison smoke. As for the entrances and exits of the canyon, even if it uses poison smoke to attack, it will immediately disperse after entering the valley and rise to a high altitude, and will not enter the middle or bottom of the valley at all."

"Wait." Luo Zheng said in surprise: "Do you mean that poisonous smoke will take off after it is released from the canyon?"

Poison smoke attack is Shi Qian's specialty, but it is difficult to guarantee that the enemy will not use the same method. If the poison smoke is enough, wouldn't it be easy to take down the entire valley? Luo Zheng was worried about this, but he didn't expect Cao Xi to say that poison smoke could not come in? This made Luo Zheng very curious.

"Of course." Cao Xi said with a confident look on his face. After looking at Shi Qian, Shi Qian looked at the entrance and exit of the canyon in confusion, which was more than a thousand meters away from him. He couldn't help but think about it. However, Cao Xi continued, "If you don't believe it, we can go ahead and take a look. I'm sure there is no problem."

"Let's go." Luo Zheng said in a deep voice. This question is very important and it's okay to not figure it out.

Everyone hurried forward and came to the entrance and exit of the canyon. Cao Xi smiled confidently and said, "Boss, look good." As he said that, he squatted down and grabbed a bunch of dust, and raised it into the air. The soil particles fell down, but the dust died in the air with the wind, which was clearly visible.

Luo Zheng was overjoyed when he saw this scene and looked at Shi Qian. Shi Qian nodded understandingly and said, "Indeed, the current wind is enough to blow poisonous smoke into the valley. If the wind is small, it may not be able to blow poisonous smoke in. This conclusion is credible."

"It's more than that, even if the wind is a little bit small, don't worry." Cao Xi rushed to say confidently. Seeing everyone looking at him curiously, he explained: "The wind will echo after it blows into the valley, just like a tide rushing to the beach. Because there is no way out in front, it will then roll back. The wind here is the same. No matter the size of the wind, this phenomenon will occur. In addition, this is large enough, our base only needs to fall down the middle or bottom of the valley. I suggest that at the bottom, the poisonous smoke cannot be blown in at all."

"It's interesting, let's go back to the bottom and take a look." Luo Zheng said with a smile.

Everyone hurried back to the bottom of the valley, and it was obvious that the wind was much smaller, and it was indeed the opposite. Everyone was smart and could not think of the benefits here. Luo Zheng looked at Cao Xi happily and said, "I am a geography expert. I have a strong observation ability. Tell me about your other basis."

"Thank you for your praise," Cao Xixiao said: "From a geographical point of view, there are three very important points: One wind, two water and three soils, wind is beneficial to us. You can rest assured that there is water. I took a look and found that the mountain springs here can also double the water output. The groundwater and water veins come along the mountains, which are very irregular. You don't have to worry about being cut off. By then, the mountain springs can be stored enough for thousands of people to live. "

"Wait a minute, what is the trend of the water vein you are talking about?" Luo Zheng asked interrupted.

"I have observed the water veins here. They come along the mountains. The mountains here are steep and winding. Even if the enemy sees the direction of the water, there is no way. Unless the entire mountain is flattened, the mountains here stand tall, and even with missiles, it is impossible to flatten, so don't worry." Cao Xi explained.

Luo Zheng didn't know much about these things, but when he saw Cao Xi's confidence in saying that, he believed it and nodded and said, "It's great, let's talk about it, what's going on?"

"Soil is soil, and soil is divided into living people and dead soil. For example, most places with severe desertification have become dead soil. They run away when the wind blows. The soil is loose and not conducive to people's habitation. The soil here is mainly shale, mixed with green hill stone and granite. It is very hard and cannot be blown up and buried in the valley. Even if missiles attack, the cliffs here will not collapse on a large scale." Cao Xi explained.

Luo Zheng looked at the exposed stones on the surrounding cliffs. The black and brown rocks looked very hard, with water vapor on them, and some tender green grass roots grew in the cracks. He couldn't help but smile and said, "The three points you said are very good. Are there any supplements?"

"There is one thing, that's snow." Cao Xi pointed to the top of the mountain and said, "This place will definitely snow heavily in winter, and the valleys will be buried by heavy snow. This is the only disadvantage. If we put our residence in the mountain, there will be no problem."

"Are you talking about digging a mountain?" Shi Qian asked in surprise. Seeing Cao Xi nodding affirmatively, he thought for a while and looked at Luo Zheng who was thinking about it, saying, "This is a good way. It is difficult to hide us in the mountain. The enemy cannot see it. It is difficult to attack. However, the soil here is hard and it is not easy to dig. What we lack the most is time, boss, look?"

"Don't worry, I think Cao Xi's proposal is very good. The base should be hidden and cannot be built in a valley. Although the magnetic field here is chaotic and the enemy cannot be viewed with satellites, there are still risks for people and aircraft to come secretly. It is different if they hide in the mountains. If people cannot see it, the missiles carried by the aircraft cannot do anything about the solid soil here." Luo Zheng smiled, his eyes lit up.

"But time?" Shi Qian reminded worriedly.

"Time is not a problem. The soil here is very hard, and it is definitely not good to dig. If you use blow-up, let's dig a hole from the cliff and go in. A hundred meters above the ground, the exploded soil will be shoveled out directly and thrown into the valley. It's big enough here, and the earth is piled up." Luo Zheng said in a deep voice.

"The earth can be piled into a city, so that the enemy can think it is the place we built to live, and it has a certain confusing effect. At that time, the entrance and exit areas of the canyon can also be used as fortifications. If an enemy comes in, you can use the fortifications to fight back." Cao Xi suggested.

"Hahaha, a good idea." Luo Zheng's eyes lit up and he said with a smile.

"While directional blasting is used, the soil is shoveled out directly. The hole is larger. Adjust as many engineering vehicles as possible to shovel the soil. It will not take long to hollow out the mountain. The biggest problem with digging is the soil piled up. The efficiency of shoveling directly from the cliff will be very fast." Cao Xi said happily.

"Bang" Suddenly a gunshot
Chapter completed!