Following the direction indicated by Ling's hand, Song Yong and the others walked all the way towards the Grand Canyon outside Lixu.

Song Yong could find that the closer he got to the canyon, the more scarce the weeds on the ground became, and when he entered the canyon, he couldn't see any green in his eyes.

In contrast to the lush forests outside the canyon, these are two different worlds.

However, this kind of terrain is more suitable for the emergence of natural brine, because according to the scientific truth that Song Yong knows, the higher the soil salinity, the more difficult it is for plants to survive.

After walking into the canyon, Song Yong subconsciously looked at the environment of the canyon.

The canyon is flanked by towering cliffs, which are almost impossible to climb with manpower.

In terms of overall length, it is at least seven or eight miles long, but in terms of width, the narrowest position of the population in front and behind can barely accommodate a large truck.

The middle of the canyon is quite spacious, almost as wide as a mile.

That is to say, as long as the entrance and exit positions on both sides of the canyon are blocked, this salt-making treasure in the canyon can be perfectly guarded, and all interested people can be prevented from prying eyes.

Of course, there also needs to be a premise that salt can really be made in this.

If you are lucky enough to find this place, maybe it is also the ancestors of the Gray Rabbit tribe who have appeared.

Because of this kind of desolate place, where even birds don't poop, under the circumstances before the hunting team, they would never come here to waste time.

A few days ago, the hunting party chased several wild deer that had been shot and wounded, and plunged into this desolate canyon.

After all, the prey ran away, and the aluminum alloy arrows inserted in the prey, those precious things must be recovered.

After the hunting team chased the prey in, they finally found that there was a rather hidden col in the middle of the canyon.

The wounded deer were licking with their tongues, oozing a stream of water.

After easily killing the wild deer, it was the thirsty Ling who didn't even think about it, so she opened her mouth and drank a large mouthful of spring water flowing from the mountain col, only to spit it out with a 'wow'.

Because after these springs are entered, they are unspeakably bitter and astringent.

However, after spitting up, recalling the obvious salty taste in his mouth, Ling's eyes suddenly lit up......;

Soon, the group found the col that Ling said in his mouth.

"Six-fingers, you guys come with me, go over and have a look first. Because the area of the col is not large, there is no way to accommodate all the people, so Song Yong can only beckon his high-level leaders to go in with him to have a look.

When he arrived at the place, Song Yong could find that a spring about the size of a little finger was flowing out of a crack in a stone more than three meters high.

Perhaps because the spring water contains too much sediment, the water looks a little yellowish.

"Can there really be salt in such yellowish water?" Song Yong complained in his heart.

But complaining and complaining, he still dipped his fingers in a little spring water and put it in his mouth; Ling described it correctly before, and suddenly an indescribable bitter and astringent taste spread in his mouth.

Luckily, even these bitter flavors can't completely mask the obvious saltiness.

It's just that in comparison, the yellow-brown salt blocks that came from the Qingshang tribe and were treated as garbage by Song Yong are too much stronger than these spring water in terms of taste.

Obviously, this yellowing spring water contains not only sediment, but also a large number of impurities that are harmful to the human body.

In short, those beasts can directly rely on these to replenish salt, and no matter how strong the physical fitness of the primitive people is, I am afraid that there is no way to do this.

However, as long as the natural brine can be found, the rest of the things are not difficult for Song Yong.

Isn't it just that we need a little bit of primitive filtration and purification technology? Song Yong's mobile phone just happens to have many types and methods.

"I~" Song Yong spit several mouthfuls of saliva in a row, which made the feeling in his mouth feel a little better.

Then, he took out his mobile phone and flipped straight to the folder where the downloaded materials were located, and found one of them, which was about the ancient primitive salt-making process of the modern plane.

After reading it hastily, it can be regarded as having a basic concept in mind.

Then, a string of orders came out of Song Yong's mouth: "You go and bring a few more people, hurry up to the mountains and forests outside the canyon, and find a little more dry firewood." ”

"Here, find a few stones in the open space outside, and build a stove for me, Ling, don't be stupid, and use the iron pot you carry to connect a pot of this spring water. ”

As soon as the voice fell, the hooligan ran out of the col, and after calling out a few names loudly, he led them all the way to the mountain forest.

The rest of the people also counted one by one, and they began to get busy with their hands and feet.

Even if they don't have the concept that they are creating the history of the tribe in their hearts, they can still understand the importance of it.

Soon after, the only iron pot in the tribe was filled with a large pot full of yellowish spring water.

A cauldron filled with spring water was also set up on a simple earthen stove made of stones, and the firewood collectors carried back large piles of dry dead branches and leaves as quickly as possible.

Then everyone held their breath and waited for a miracle to happen.

The problem is that their brother Yong didn't let people light the fire right away, and planned to boil the spring water in the iron pot with a big fire.

And he didn't do anything, didn't say anything, and stayed in front of the iron pot.

It was only after a while that the natives were surprised to find that the original yellow spring water in the pot had actually become much clearer than the upper layer.

Only at the bottom of the pot is a thin layer of sediment.

"Drink all the spring water in your bamboo tubes, and then give me all the bamboo tubes. A new order came out of Song Yong's mouth again.

Under this new order, everyone took off the bamboo tubes they were carrying, and then complied with them one by one.

After taking over the bamboo tube, Song Yong didn't even think about it, so he directly took off his shoes that smelled a little and took off a pair of summer stockings on Miang.

Immediately afterwards, this pair of socks with a certain smell was put on top of a bamboo tube.

This was done in order to filter the remaining sediment from the spring water, and the medical gauze he had brought with him would naturally have a better effect.

But Song Yong was a little anxious to go out today, didn't he forget about it.

Changing to stockings can also have the same effect, as for the taste or something, you have to worry so much.

Picking up the big iron pot, Song Yong carefully poured the spring water that was a little cleaner on it into several bamboo tubes covered with stockings.

The rest of the small half pot of spring water, along with the mud and sand at the bottom of the pot, was all thrown out.

To his surprise, these springs left a thin layer of yellow mud on the stockings, and Song Yong thought that it was not a big problem, but that he could continue to use it after washing......

Later, the water was poured into a large iron pot.

After the first filtration, most of the pot of spring water remained in the pot.

Compared with the yellowing state that originally flowed out of the cracks in the rocks, the water left behind now looks much clearer, but this kind of filtration result is still a little insufficient for Song Yong.

So, the firewood in the earthen stove is lit and all the remaining spring water in the pot is boiled.

Just as the spring water was boiling, some new impurities appeared at the bottom of the pot.

Then, of course, the vast majority of the barbecue water was poured into the stocking-covered bamboo tubes, and a few impurities from the bottom of the pot were simply discarded.

After straining it five times in a row, Song Yong burst into flames against the spring water that only had a small half pot left.

In the end, when all the liquid messages were in the pot, there was a thin layer of snow-white salt at the bottom of the pot, which was so beautiful.

After cooling down a little, Song Yong dipped a little with his finger and put it in his mouth.

Immediately, you can feel a strong salty taste, with a slight hint of bitterness.

Compared with the iodized refined salt of the modern plane, there seems to be a little gap in taste, but compared to the yellow-brown salt blocks of the Qingshang tribe, it is really much stronger.

And when Song Yong dipped the salt in his mouth and put it, everyone held their breath and looked at their brother Yong.

When Song Yong nodded at each other, indicating that the salt production was successful, the huge cheers were immediately transmitted far away in this long canyon.