At noon, Grande, who learned of his return, hurried back from the construction site.

"It's great to see you back, Your Excellency, Commander!"

"Haha, you don't have to say these kind words to me, come on, tell me how your work has been going lately?"

Yang Yinuan smiled and beckoned Grande to come and sit down, and then asked the servant to bring them a simple lunch.

Two large pieces of fine fried steak, and some local vegetables.

Grande was not polite, sat down, and ate a bite of meat.

Although they are clones, they are still carbon-based lifeforms, and they still need to replenish energy just like normal people.

"Well, the current progress of the construction of the city defense, you must have seen it."

"It's very slow, so to speak, but it's not that we don't work hard, it's because the weather is so great."

"It's the depths of winter, and the temperature difference between day and night can often reach 30 degrees."

"During the day, the temperature can reach minus 10 degrees Celsius, and at night, the coldest temperature can reach minus 20 degrees Celsius!"

"Such a large temperature difference change is very unfavorable for earthwork construction."

"So I can only let the captives dig the trench of the foundation first, and then try to arrange for them to go up the mountain to cut wood and quarry."

After listening to Grande's report, Yang Yinuan nodded: "Well, that's the only way!" ”

"There's also good news!"

Grande's words made Yang Yinuan sit up straight.

"Oh? What good news, let's hear it. ”

"We found an open-pit coal mine in the Qili River area, which is inevitable in Qianshan City!"

When Yang Yinuan heard this, he couldn't help but pat his thigh.

"What? That's great! ”

With coal, a lot of things can be solved.

For example, steelmaking requires a lot of coal, and the heat of this thing is much higher than that of the branches.

And with coal, heating and cooking, you can save a lot of wood.

There is also the brick factory, with coal, you can burn higher quality bricks.

After all, the hardness and durability of bricks are positively correlated with kiln temperature.

The higher the temperature when firing, the more familiar and durable the fired bricks will be.

With wood, it is difficult to burn the desired high kiln temperature, while coal can ......

As for steelmaking, not to mention, the process of desulfurization and phosphorus removal requires the use of coke.

And coke is made by burning coal......

Therefore, the discovery of coal is good news for Yang Yinuan and Qianshan City.

The most important thing is that those steam engines they seized before were in the presence of coal.

These steam engines can also be operated.

"The good news is that when we were on an expedition in the mountains, we found the waterfall and the river upstream."

"It's an immovable river!"

Hearing Grande say this, Yang Yinuan smiled bitterly at this time.

"That's not good news, is it?"

It's such a cold day, but the river on this mountain doesn't freeze.

What does this mean, does it mean that there are geothermal resources underground?

But why are there geothermal resources on this mountain, which means that there may be a volcanic crater nearby.

Therefore, or the mantle layer is relatively shallow, and a good or bad magma may emerge from the ground in minutes.

This was what Yang Yinuan thought, but the answer given by Grande was completely different from what he thought.

"We went up the river, and finally upstream, we found a cave, and it turned out that there were many such Kast landforms in the vicinity."

"And inside this cave, we found a steaming spring, where hot water and water vapor gushed out..."

"The temperature of the water is very high, I tested it, and it can be seventy or eighty degrees."

"I think we can make use of this part of the geothermal resources!"

Grande directly said his conclusion, and Yang was stunned.

"How to use it? Do you want to build a few thermal power stations here? ”

"Haha, that's not enough, we can directly connect these hot waters to the steel mill below or something."

"Anyway, there is one less heating process, and even if it needs to be heated, the energy consumption will be very low!"

"And recently, we've started building a dam at the mouth of that dammed lake."

"But the progress of the project is very slow, because as you know, we lack modern construction machinery."

"It will take a few years to build our ideal appearance!"

Grande said, Yang Yinuan couldn't help but raise his eyebrows when he heard this.

"What? How long does it take? I can't afford to wait! ”

Grande shrugged: "No way, it's winter, it's a dry season, but even so, the water flow is still very large in the gap of the dammed lake." ”

"We rely on manpower alone, and if we want to intercept the water, it's really not that easy!"

Yang Yinuan shook his head: "Don't worry about this, I came over this time and brought some construction machinery." I'll go up with you later. ”

"Is that so? That's great. ”

Grande's eyes lit up when he heard him say this.

The two of them had a few quick bites of food, and then set off from the castle.

Coming out of the castle, there is a mountain road at the entrance, which goes down to the east and goes straight to the mountain to the west.

After walking more than 100 meters up to it, you will feel suddenly enlightened.

Because suddenly there will be a mountain platform that will appear in front of you.

It is a very large valley of high mountain terraces, and in the middle of this valley is a turquoise dammed lake.

"The lake can be ten square kilometers in circumference, and the deepest part can be more than 50 meters."

"The water storage capacity can be about 3 billion cubic meters, and the water energy is very huge, and it is absolutely no problem to build a small hydropower station."

Grande introduced the situation of the lake to Yang Yinuan, and Yang Yinuan nodded.

Pick up the binoculars and look into the distance, just enough to see that on the northeast side of the valley, there are several valleys.

There are bubbling rivers in those valleys, which are constantly flowing into the lake.

At the front of the lake, there is a 'pot mouth' about 50 meters wide.

A large amount of lake water rushed from this pot mouth to the ground more than 500 meters below.

This water potential, this drop, really, it would be a pity not to build a hydropower station.

He put down his binoculars and followed Grande in the direction of the mouth of the pot, and in a short time he came to a platform near the mouth of the pot...

From here, you can see the Qianshan Ranch surrounded by two mountains...

Looking at the beautiful scenery under the mountain, Yang Yinuan suddenly popped up a poem in his mind: The infinite scenery is in the dangerous peak!

Looking at the fertile soil at the bottom of the mountain, he was even more determined to develop this place.