The cost of open-pit mining is very low, and it is far safer than the mine. If this mine appears in the kingdom of Florence, it will definitely be robbed by the surrounding nobles. Although this is only an iron mine, the input is low and the output profit is higher than that of ordinary silver mines.

After confirming the location of the mine, Su Lun opened the strategic map to see the map from here to the territory. He was ready to find a nearest route.

Soon, Su Lun found something on the map. About a kilometer away from the mine, there was a river flowing through. Su Lun specially went to check it. The river was between 8 and 13 meters wide, with a water depth of two or three meters and a general flow. It was just an ordinary river.

However, this small river is a tributary of Baishui River. If it continues to extend about three kilometers to the northeast, it will flow into Baishui River, then flow upstream along Baishui River, and finally return to the wharf of the territory. With this river, the ore mined from the mine can be transported to the territory by water.

Compared with land transportation, water transportation has too many advantages. It not only has large transportation volume, fast speed and low cost.

Although the river three meters deep and eight meters wide can not pass through too many ships, it is enough to transport iron ore. slaves are also used to mine the ore, and the cost is also pitifully low. In addition, hydraulic forging machines have been used in sulun territory, and the labor cost has been reduced again. As for the blast furnace and fuel for smelting the ore.

The cost of this part is also very low. There are trees everywhere in the wilderness. Slaves can also be used to cut down trees. In this way, the cost of forging a piece of refined iron is ridiculously low.

It\'s like a piece of equipment forged by Suellen for his barbarian guard. If it\'s in kart City, these equipment will cost at least 200 jinnars, but in Suellen territory, the cost of this equipment is only 30 jinnars at most.

In addition to the labor cost and transportation cost of mining, the most expensive forging cost is also replaced by hydraulic forging machine. The new blast furnace adopted in the territory not only increases the output, but also reduces the cost again. So the lowest cost of this equipment is so low.

Even if Su Lun sells his equipment at the price of 150 jinnars per set, he can easily make a lot of profits. Moreover, such a low price can also attract businessmen willing to take risks to trade here.

With a decision in mind, Su Lun didn\'t stay here anymore. He asked two barbarian warriors to command the dog headed men to build houses here, and Su Lun rushed to the territory.

The territory now has 1500 goblins, koeheads and jackals slaves, of which the largest number is goblins, about 700, the second is koeheads, more than 500, and the rest are big goblins and jackals, about 200.

Although the strength of the dog headed people is not very good, this race is good at mining. Su Lun is going to send all the dog headed people of more than 500 people to the mine for mining. In addition, there are more than 200 dog headed people and nearly 800 dog headed miners in the mine, which is almost enough. In addition, he has to set up a team to protect the mine.

But as a result, the territory, which was once a well populated territory, has become scarce again.

Now that the territory has developed, Su Lun has felt that his barbarian guard is understaffed, and there are few free people in the territory, so it is impossible to recruit human soldiers. As for those barbarian women and children, some children can participate in the reserve, and many barbarian teenagers will grow up next year.

But even so, it is far from being thirsty.

This situation cannot be changed for some time. The recruitment order used last time has not even recruited a ghost. Su Lun has completely given up. He is going to mine some iron ore first and then transport it back to forge weapons.

After the weapons were forged, Jean was asked to take the caravan to transport the weapons to kart city for sale. With the low cost here, even if the price was reduced, he could make a lot of profits. When he had the money, he went to the slave market to buy serfs or other slaves.

In addition to using these slaves to fill the shortage of population in the territory, sulun also plans to publicize his territory in the surrounding cities to attract civilians who want to obtain land to become free people.

Near kart City, because there has been no war for decades and the population has increased sharply, many people are born without land. You know, in this world, the right to inherit property belongs to the eldest son, and other sons will be independent when they grow up.

As a result, many people have no farmland or money and can only work in cities. The vast majority of mercenaries are such people. Those who own industrial farmland rarely migrate. Su Lun\'s territory has no attraction to them. Only those who have nothing will be willing to take risks and come to Su Lun\'s territory through hundreds of miles of wasteland.

Su Lun\'s goal is to recruit these people to the territory to become his free people. Although most of them have no assets, as long as they work hard in the territory, Su Lun will pay them wages and let them buy a home in the territory. Or sell the farmland to them by installment payment.

In fact, Su Lun is already considering restoring the freedom of his serfs. Of course, he won\'t do so now.

He plans to let these slaves work for several years, and then cancel their hard-working status step by step and let them become free people. Although Suellen\'s release of slaves seemed to be a loss to him and suffered heavy losses, in fact, it didn\'t count like that.

When they were slaves, these people would not work as slaves. Even if they were forced to work, they would be more efficient. Although they saved money, they did not create much value. However, if sulun agreed with them that as long as he worked seriously for him for a few years, he could be pardoned as a slave and become a free man.

Then the positive progress of these slaves will definitely have a leap forward improvement. A few years later, after these slaves become free people, they naturally want a better life, so they will certainly work harder and contribute taxes to Suellen.

In this way, they created much more value than those slaves. Of course, Su Lun didn\'t do this from the beginning. After all, the traditional power of the world is still very strong.

At least he was prepared to wait until he was stronger. If sulun does this in the south, it is estimated that he will worry about the influence of the surrounding territories, but in the northern wasteland, which is a territory with high mountains and far emperors, basically no one will care.

PS: Thank you for your 100 yuan reward, and thank you for your 100 yuan reward.