In a ravine below longquan mountain villa in Shaanxi province, people call it Longquan ditch. The origin of the name of Longquangou is that during the Qing Dynasty, there was a very rare drought, everywhere was dry land, all the streams and wells, were dry and cracked, dripping water is difficult to find, just in this ravine flowed a clear stream, feeding the people around, therefore, it was called Longquangou, the name came from this.
There is a large black hole in the depths of LongquanGou, and the surrounding villagers have been outside the cave to herd sheep to collect firewood, but no one has ever dared to take a step closer. When people find the mouth of the black hole, they have a sense of nameless fear, far away from it, and dare not go near it.

Therefore, there is a strange and terrifying legend about this black hole, saying that someone chased a flock of sheep, and the sheep were sucked all the sheep into it like an attractive black hole, and from then on, the sheep never came out of the hole, and the sheep herders twisted their legs in fright and ran, and when they returned to the village, word spread.
More than a hundred years ago, someone saw a huge snake enter the black hole. Some people also found a ferocious leopard at the mouth of the cave, and when they saw someone at the mouth of the black hole, they ran into the black hole. Therefore, there are many bizarre legends in this black hole, and later no one dared to go near the mouth of this black hole. Therefore, people here rarely come to this ravine, making it overgrown with weeds and thorns, and people rarely appear around the mouth of this black hole.
Recently, many people in the village began to talk about the magical story of the big black hole, and some people proposed that everyone go together to find out what it is, and how bold people are, even if there are jackals, wolves, tigers and leopards, they are not afraid. So a dozen villagers, both old and young, took flashlights, wood knives, sticks, ropes and other tools to the black hole in the ravine.
The mouth of this black hole is elliptical, and the opening of the cave looks like a natural formation, and many traces of artificial excavation will be found at the mouth of the cave, indicating that this is a man-made cave. The cave is very deep, and the deeper it goes, the more forked holes there are, and some places are found to use red wood to support the roof of the cave to prevent collapse.
Each hole, the space is relatively large, can accommodate many people, and can also lie down to sleep. Traces of people living in the cave were found everywhere, and the walls of the cave had places where oil lamps were placed, and the walls were black. There is a relatively large area in the deepest part, which is estimated to be where the owner of the cave lives.
The villagers speculated that the people who lived in this cave must not be ordinary, and the cost of excavating the cave was not affordable for ordinary people, and the cost was very large. Judging from the supports inside the cave, the owner of the cave is a very rich person with a very high status, who is made of paint wood. There were no other items left behind in the cave, it was very clean, and there were no foreign objects.
The original legend is not self-destructive, there are no leopards and snakes and other animals inside, it is a large cave built by man. After they came out of the cave, they reported to the cultural relics protection unit above.
Later, many people came to investigate, according to some experts, this may be hundreds of years ago, ancient wars, when the royal community escaped the war and built. It is precisely because there is a spring outside the cave, a source of life, and the terrain is very hidden, that it was chosen to dig a cave here. Research is currently under way.
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