It is a valley with an altitude of about 180 meters: on the northeast side is the main peak of the entire mountain range, with the highest point at more than 1,400 meters above sea level. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 On the west side, which is only more than 20 meters above the valley floor, is the original radar station.

On this map, there are two points drawn by Zhang Nan, about 500 meters away from each other, and there is a small headland with a protrusion in between, both on the northeast side.

The first point is 200 meters ahead, up to 300 meters from the barracks area, and the second point is further inside.

Xiang Weirong also looked at the map carefully and said, "How about using the method in West Germany?"

"Well, try. ”

Zhang Nan nodded.

Put away the map, leaving a few people, Zhang Nan walked to the west with five or six here, and climbed more than ten meters up the hillside.

Stop at a place where the view is not blocked, and take a look.

After a while, Zhang Nan said: "It seems that the place should be right." ”

Xiang Weirong and Guan Xingquan also nodded.

The old way of West Germany is to look at the woods.

This is a tropical rainforest area, and the soil is the soil that changed from the volcanic ash that erupted in ancient times, and the soil layer is relatively thick, and the trees grow quickly.

Even if there was a base established by the Japanese army in the 40s, as long as it was not a permanent reinforced concrete building, it would have been reconquered by nature long after more than 40 years.

You should know that although the general rainforest is densely vegetated, the soil layer is actually very thin compared to other landforms, and the soil conditions here are very good, and the plants will grow like crazy.

Although this area is not far from Subic Bay, there are more than 40 kilometers along the road, and due to topography and historical reasons, there have not been many traces of human activity in this area, which is completely different from the dense situation of villages and towns on the plains at the foot of the mountain 10 kilometers away.

In front of the mentally prepared people, two "improvised roads in the woods" from more than forty years ago are depicted, and the end is on the northeast side of the hill.

At this time, Xiang Weirong said: "This road will be too close to the construction site, why don't you go inside and take a look?"

Zhang Nan nodded, and a group of people walked down the hill.

Limman and Zach were left to wander around the construction site, while the others walked inside, looking like the boss inspecting.

Others won't pay attention to what Zhang Nan's gang is going to do, this is the boss's territory. Moreover, there is a military training base built in the valley, and there will be a lot of things that need to be kept secret, and the people and contractors who come to work have long been told to work according to the construction contract, so don't be too curious.

Those who have done the work of the US military base are all veterans: make money honestly and take care of their eyes, ears and mouth!

Just now, everyone looked forward from above, although the plants in this area were relatively sparse, but they could still find the different points of vegetation: different colors and tree heights.

The difference in color is due to the deviation of plant height caused by surface plant species and soil fertility problems, and the difference in line of sight in sunlight is the same reason as the construction of a football field lawn.

After walking for about 20 minutes, it is much more troublesome to walk here than on the slopes of the Alps, and the rainforest climate is good. Then, the group was blocked by a large rocky slope that had been overrun by tropical plants.

The high mountain slopes in front of it are prone to rainwater erosion due to the tropical rainforest climate, and there are many rocks in this area.

If you don't observe carefully, you won't notice the difference here when you walk on the ground, although there are too many broken rocks among the vegetation here!

Without the boss and the squad leader to speak, Chen Hao had already stepped forward to take a closer look.

After climbing up and down for a few minutes, Chen Hao said: "It's blasting, and a lot of explosives are used, at least 20 times more than that of the Germans." ”

It is good to be sure that it is a blast, and it is better to use a large amount of explosives, which shows the vastness of the original project here.

It's not an old mine or something that was temporarily selected, but a specially built fortification.

Looking at the stones that were about to disappear among the vegetation in front of him, Guan Xingquan said: "The U.S. troops at that meeting are also strange, so it's not good to investigate these possible mines." ”

Zhang Nan said: "It's hard to check, and besides, the U.S. military is not interested in the things of the little devils, except for gold." ”

In fact, Guan Xingquan also knows that when he enjoys the fruits of victory, who will spend a lot of effort to investigate these blown up tunnels.

Thankless work, no one wants to do it.

Little devils like to dig tunnels everywhere in Southeast Asia, and Saipan and Iwo Jima are dug like ant nests.

Since the middle of the Pacific War, the U.S. military has been vigorous, and the little devils have to dig holes everywhere for defense. Especially on Iwo Jima, the volcano is said to be hollowed out entirely.

The effect of digging deep holes is very good, and although the American bombs and the super-heavy shells fired by the battleship cannons are powerful, they are often helpless against these fortifications.

Luzon is mountainous, and it is not far from Subic Bay, and there are many fortifications such as tunnels dug by little devils.

And during the return of the U.S. military to fight in the Philippines, the little devils estimated that they blew up countless tunnels, underground fortifications and tunnels.

Just like on Iwo Jima, the U.S. military has no interest in re-digging the blown up tunnel fortifications to see what is going on inside, and they wish that the little devils were suffocated inside and couldn't get out.

Those who the devils took the initiative to blow up are even more ignorant: if the ammunition that can't be taken away from the inside, the Americans dig up the treasure?

Too lazy to dig.

The vegetation is messy and the landslide area is also huge, Zhang Nan feels that it is best to determine the location of the hole relatively accurately, so that the use of large excavators will save a lot of time when excavating, otherwise the amount of work is not small.

asked Chen Hao if there was a way.

"Yes, Xie Gong and I have discussed the problems of mine and tunnel construction, and there are professional artificial seismic instruments that can be operated.

By receiving seismic waves generated by artificial blasting using a very small amount of equivalent, the instrument is able to reflect the general geological structure of the nearby subsurface.

If there is a cavity tunnel, the instrument can easily detect it. ”

Zhang Nan immediately asked, "Can you operate it?"

"Yes, they will use it, I can learn, it sounds very simple. ”

Hearing Chen Hao's answer, Zhang Nan nodded and said, "I'll buy one when I go back."

Change this person next month, and do it when the time comes. ”

If you have money, there is always a place to buy this instrument, and the same is true for excavators, those American contractors can get them, and they can do it themselves.

As for the excavator operator, it's okay if he can't find a suitable one, Zhang Nan can deal with it when he goes into battle.

It is not a difficult slope repair, not to talk about the appearance and quality, it is simply to dig stones: this slope is not large, and there is no need to worry about collapse.

Now there are many people, and we will wait until the infrastructure of the camp is completed.

"The yacht has also been transferred, and it is estimated that it will not be less than Berchtesgaden. ”

I thought to myself, if this is the legendary "No. 8 fortification", then the "Sunshine Star" is too small and too small, and we all have to get a transport ship.