Located in northeastern China, the Great Khing'an Mountains are the main mountain system of the Inner Mongolia Autonomous Region, with a length of about 1,220 kilometers from north to south, and are the boundary between the Songliao Plain to the east and the tall Mongolian Plateau to the west. The Great Khing'an Mountains start from the Rehe Plateau (Chengde Plain) and end in the north to the Heilongjiang River. The mountain range is also the watershed of the Liaohe River system, the Songhua River and the Nenjiang River system on the east side and the headwaters and tributaries of the Heilongjiang River on the northwest side, and the water on the western slope of the southern section of the mountain range flows into the Mongolian Plateau. The "Xing'an" in the Great Xing'an Mountains is Manchu, which means "extremely cold place", because of the cold climate, so it has this name. The northern part of the mountain range is the coldest place in eastern China, with severe winters (average temperature -28°C [-18°F]) and large areas of permafrost.

Sun Xiaoshan's destination is the northeastern part of the mountain range, where the terrain is steep, the snow does not melt all year round, the permafrost is extensive, because of the cold climate, the mountains are densely wooded, because the roads are not smooth, the trees have hardly been cut down.

Sun Xiaoshan led the team to enter the base from the entrance of the underground base group in the southwest of the Great Xing'an Mountains, and along the way, the tunnels in the mountains were wide and flat.

After the founding of the People's Republic of China, it was used as a front line against the Soviet Union, and continued to expand, in order to cope with the complex international situation, in fact, it was a nuclear strike by the United States.

Almost all of China's major mountain ranges have military bases to deal with different threats, with troops stationed in them, weapons warehouses, and material warehouses, and I really don't know whether it is lucky or unlucky.

Looking at the wide and flat military base, Sun Xiaoshan knew that these were the results of industrial construction, and each tunnel and each cable were clearly marked with the name of the unit responsible for the construction and the name of the specific construction personnel.

"It's still a big force of industrialization," Sun Xiaoshan was intoxicated by the power and beauty of industrialization, if he took a pickaxe and a shovel to dig these underground tunnels, it would really become a fool to move mountains, and he couldn't finish digging.

The tunnel is wide, can be used for heavy trucks in parallel, Sun Xiaoshan and his party sat in the army's warrior military vehicle, while checking and planning whether the facilities are in good condition, where is suitable for the installation of industrial equipment, basically the industrial equipment of the last days is absolutely excessive, and it is also aging when it is exposed to wind and rain, it is better to disassemble it nearby and assemble it into a production line, and then take sealing measures to store it up to prepare for various situations in the future.

Humanity has come to an end, and who knows what will happen in the future?

Some of the tunnels were not connected due to geological reasons, so they drilled out of the ground and walked a distance between the mountains and forests, where the snow did not melt and the snow was not melted.

Many places were trampled by zombies, and the animals were also eaten by zombies, and there was no animal roar in the past, insects whispered, only the whining sound of the cold wind blowing through the treetops in the forest.

It took more than ten days for Sun Xiaoshan and his entourage to come to Mohe County, the northeastern tip of the Great Xing'an Mountains, and their clothes were changed from the army's winter uniforms to cold uniforms.

"It's too exaggerated," Sun Xiaoshan and Li Qiang video, "Your army is really idle, and you have almost dug up the Daxinganling Mountain Range." ”

"What's this, the Chinese army is famous for being able to make holes," Li Qiang didn't think it was a compliment, "It's not that China's weapons are backward all year round, and there is nothing to do." Whether or not we can guarantee that our weapons are advanced enough that we don't need to dig such holes is up to your Ministry of Industry now. ”

"Well, well," Sun Xiaoshan thought, the end of the world, there are nuclear weapons in the world and the number of them that can be launched is not very many, a few years before the end of the world, basically we have no shortage of advanced equipment in China, but considering the cost of the problem has not been promoted, now in this form, there is no need to worry about the cost, anyway, it is to pay for steamed buns.

Mohe County is the county with the lowest temperature in the country, and belongs to the cold temperate continental monsoon climate. Due to the alternating influence of continental and oceanic monsoons, the microclimate changes are varied, and the local climate differences are significant. Winters are cold, dry and long under the control of polar continental air masses; In summer, under the influence of the subtropical marine air mass, the precipitation is concentrated, the rainfall is abundant, the climate is humid and hot, and the sunshine time is long, which is suitable for the growth of cold-tolerant crops, but it is prone to floods and low temperature chilling damage. In spring and autumn, the climate is changeable due to the alternation of winter and summer monsoons. In spring, there are many winds, less precipitation, dry and drought, and forest fires are prone to occur; Autumn drops down sharply, and early frost and frost damage often occur. ,

The average annual temperature in Mohe County is -5.5°C. The average monthly temperature is below 0°C for up to 8 months. The annual temperature range is 49.3°C. The average frost-free period was 86.2 days. The average annual precipitation is 460.8 mm, and more than 70% of the annual precipitation is concentrated in July. May ~ June is the dry season, July ~ August is the flood season. The total annual average of solar radiation is 96~107 kcal per square centimeter, and the sunshine hours are 2377~2625 hours. The accumulated temperature of ≥ 10 °C is 1436~2062 °C;

Mohe is a continuous permafrost area for many years, with the thickest permafrost of less than 100 meters and the shallowest thawing of permafrost, and the maximum thawing upper interface is only about 20 cm.

Sun Xiaoshan felt that Mohe was a very interesting place, it was the border area between China and Russia, and then it was Russia across the Heilongjiang River, standing on the mountain peak, holding a telescope, you could see the zombie group wandering dozens of kilometers away, and the general direction was still going north, so he put his mind at ease. No matter how you look at it, this place needs to be carefully constructed.

He was going to take a good look at this area, because this was the location of Mohe County before the end of the world, and it had a certain industrial base. It is extremely rich in gold, coal, and limestone, and in addition to gold, coal and limestone are very useful now.

There is snow that does not melt all year round on the mountains of Daxing'an Mountains around Mohe County, and the Northern Lights are constantly in the four seasons, and the colorful aurora reflects the snow, and the scenery is very strange and beautiful.

Sun Xiaoshan and the others came out of the exit and walked to the nearest peak to explore the nearby mountainous area, which was reported to be unsuitable for tunnel construction and was still an undeveloped and pristine area.

Considering the important geographical location --- Russia on the other side, the Special Committee has not yet decided whether to help the Russians clean up the zombie herds that have crossed the border, and the Ministry of Foreign Affairs is in contact with the Russian survivor base.

Russia has not yet emerged with a unified leadership, so progress is slow. If you rashly cross the border, and you are worried that there will be a nuclear bomb strike in the hands of a certain patriotic madman, before the end of the world, Russia had as many nuclear bombs as the United States, with more than 6,000, plus those concealed, there will only be more, China only has 450, and there are more than 10 nuclear bombs that can be launched, and Russia and the United States will theoretically not be less.

Despite the availability of pre-apocalyptic military maps, they had to carefully explore the terrain, considering that those maps were surveyed to defend against humans, and that their main opponents were now zombies.

A group of more than 100 people walked at the foot of the 927-meter-high Huoluotai Mountain, which is the highest peak in Mohe County, and is also the key mountainous area of the country before the end of the world.

Walking at the foot of the silent mountain, suddenly there was a loud "boom", everyone looked around, only to see a white snow dragon on the mountain peak rushing down, stirring up broken ice, earth and stones to fly all over the sky, and the experienced local garrison soldiers shouted, "Oh no, the avalanche!" ”

The snow wall shop was smashed head-on on the group, and at the critical moment, Sun Xiaoshan was busy but not chaotic, thinking, "I will face the danger, don't forget to collect and recommend." ”