There are three cities in Yunhua County, from north to south, they are Chenyang City, Yunhua City, and Linhai City.

Yunhua City is the county seat, almost in the middle of the population of Yunhua County, the population of Yunhua County is about 45,000 people; Chenyang City is located in the north, which is the only way to enter Yunhua County, with a population of about 20,000; Linhai City is located in the south of the sea, with a population of about 30,000, and most of the residents make a living by boiling salt, that is, filling an iron pot with seawater, and then boiling to dry the seawater, and the remaining crystals at the bottom of the pot are salt.

According to Yunyi's travel plan, Yunyi took his subordinates from Yunhua County, first to the west for more than 150 miles, then to the north, around Chenyang City, and then to the south, until Linhai City, and finally back to Yunhua County, Yunyi's route is almost around the entire Yunhua County for a week, the estimated journey is more than 1,500 miles, ready to return to Yunhua County before July, an average of more than 15 miles a day.

Yunhua County is vast and sparsely populated, and most of the places where Yunyi has to pass through have no people to live, which means that it is difficult for Yunyi and his party to supply, so Yunyi's group of twenty-two people are all two horses, one horse is used for riding, and the other horse is used to load various materials, and nearly half of Yunyi's guards can be proficient in using bows and arrows, and can hunt and supplement food at any time.

So Yunyi's journey began, and the main purpose of this travel plan was to find various mineral veins.

Finding ore veins is not a simple matter, it is difficult for people in this era to find the ore veins of the land, and Yunyi does not have those high-tech prospecting equipment and testing equipment in the previous life, and the difficulty of discovering ore veins is also greatly increased.

However, Yunhua County is still an undeveloped area. In the female land, although there are almost no veins on the surface of the fruit, with the knowledge of Yunyi's previous life, it is still possible to find some veins with obvious characteristics.

In fact, the people of this era can also rely on experience to excavate some mineral veins with obvious characteristics, and the Mohists in the hundred schools of Zhuzi summed up a set of rules: there is ochre on the mountain, and there is iron under it; There is a magnet on the mountain, and copper and gold under it; There is lead on the mountain, and silver under it; There is dansha on the mountain, and gold under it; There are mausoleums on the mountain, and lead, tin, and red copper under them; There is silver on the mountain, and Dan under it.

By the way, there are actually hundreds of schools of thought in this world, and each faction of the hundred schools of thought appeared a prototype thousands of years ago, and then slowly formed a hundred schools of thought with their own concepts, but the names of Confucius, Mencius and others that Yunyi is familiar with do not appear.

Confucianism, soldiers, vertical and horizontal families, Legalists, famous scholars, doctors, farmers, Taoism, Yin and Yang families, and Mo families are the ten most influential among the hundred sons of Zhuzi, and the Mo family is considered to be a kitsch because of its penchant for fiddling with instruments, and it is considered to be a kitsch and lewd skill, although it has more influence, it is ranked tenth, and even a small number of people think that the Mo family should not be ranked in the top ten.

In addition, the Dali Empire where Yunhua Yun's clan is located Xing Confucianism, the Shengwu Emperor's Xingfa family, and Yunhua Yun's family can be regarded as a line of soldiers, after all, the ancestors of the Yun family became nobles by commanding troops on the battlefield to kill the enemy, and generals generally accepted the doctrine of soldiers.

The Mohists summed up this set of prospecting rules can only be said to be general, after all, the Mohists are limited by the technology of this era, and can only find ore veins with obvious characteristics, if the ore veins are hidden a little deeper, it will be difficult to find, but Yunyi is different, Yunyi has a lot of knowledge in his mind that far exceeds this era, even if he does not have those advanced instruments, he can find more ore veins.

Without those advanced prospecting instruments in his previous life, Yun Yi drew a few pictures, and specially asked the blacksmith to make a few prospecting tools, the Luoyang shovel used for tomb robbery is one of them, the Luoyang shovel can take out the underground soil very labor-saving, plus some solutions prepared by Yun Yi in advance, it is just a simple matter to find the ore vein.

And Yun Yi was also thinking about when he would be able to make some of the Mo family's children use him, so that many of the ideas in Yun Yi's mind could be realized quickly, but Yunhua County was located in the westernmost part of the land of Shenzhou, and the land was vast and sparsely populated, so it could not attract the children of the Mo family to come at all, and the same was true for the other sons and hundreds of families.

To say that the most active area of the hundred schools of Zhuzi is still located in the north of the land of Shenzhou, the hundred countries in the north are all counties, counties, covering a total area smaller than the Dali Empire, forming a scattered and united alliance, nominally accepting the canonization of the emperor of the Shengwu Dynasty in the south, such an area is the most conducive to the development of primary and secondary schools in the hundred princes.

However, Yun Yi believes that when the Yunhua Yun clan grows, there will even be children of the Mo family who will take the initiative to take refuge, and Yun Yi hopes that this day will come sooner.

Yun Yi took twenty-one guards to stop and go along the way, picking up a pen from time to time to write and draw on paper, or grabbing a handful of soil on the ground, using a Luoyang shovel to look at the soil underground, and then pouring a few drops of unknown liquid to observe the changes in the soil.

The pen in Yunyi's hand is a charcoal strip, that is, the branch is formed after insufficient burning, and then after processing, it can be written, which is simpler than carrying brush ink, and paper is ordinary white paper, white paper has appeared in this world, but the process is relatively backward, the quality of the white paper manufactured is very poor, and it can barely be used, even so, the white paper is not something that ordinary people can afford, the yield is very low, when he sees the white paper, Yunyi also has the idea of making Yun's make better white paper in his mind, There are many materials for Yunhua County to make white paper, and making white paper will definitely bring a lot of income to the Yun family, but this will have to wait until Yun Yi returns from his travels.

In fact, Yunyi is not only looking for ore veins, but also to draw a simple topographic map of Yunhua County, for the map of Yunhua County, Yun's only has a simple map, Yunhua County is such a large area, the simple map only focuses on the terrain around the three cities has roads, and the other places are almost blank, after all, Yunhua County is vast and sparsely populated, and those blank areas can be regarded as uninhabited, and there are no noteworthy places.

In the previous life, Yunyi's drawing ability was relatively weak, but in this life, his drawing ability is very strong, and it is relatively simple to draw a topographic map. Yun Yi only needs to look around while walking, and when he stops to rest, he can draw the terrain in his memory on paper.

Yunhua County will always develop, the population of Yunhua County will reach hundreds of thousands or even more than one million in the future, the current three cities in Yunhua County simply cannot accommodate so many people, Yunyi drew a topographic map on the one hand to prepare for the future, on the other hand, to find a variety of hidden locations, which can be used to build factories in the future, and even build military camps for secret training.

The biggest benefit of choosing Yunhua County as the Yun clan's fief is once again revealed, and the land is the most valuable wealth of the Yun clan!