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The world's longest cave is 668 kilometers long: walking half a month can not finish, and still getting longer

The world's longest cave at 668 km long

By Su Wei LiPublished 2 years ago 3 min read
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The world's longest cave is 668 kilometers long: walking half a month can not finish, and still getting longer
Photo by pgaberski on Unsplash

For friends who like to travel, they should have seen a lot of various natural caves or man-made caves, such as the Huanglong Cave in Zhangjiajie, the Tenglong Cave in Lichuan, Hubei, and the Furong Cave in Chongqing, all of which have very beautiful scenery, strange cave surfaces, winding, and full of mystery. The length of their cave is not long, the tour also tops a few minutes to get out. But the cave we are going to talk about today is the longest in the world with a length of 668 kilometers.

This cave is located in the Midwest of Kentucky, the U.S. Because the size of the cave is very large, it is named after the ancient mammoth, called "Mammoth Cave". It is the longest known cave system in the world, with a total length of 415 miles, or about 668 kilometers. What is this concept? You know the distance from Jinan, Shandong Province to Nanjing, Jiangsu Province is only about 667 kilometers, even by car it takes more than 7 hours, and the intricacies of the Mammoth Cave are very difficult to explore even on foot.

That is, if you want to explore the entire cave, according to the speed of 4 kilometers per hour, 10 hours a day, may walk half a month in a row can not finish, this is still in the case of no loss, if lost in the intricate cave, it is not a good thing. Many people may say that even for ordinary people an hour is more than 4 kilometers, but know that this is in the cave, there is not a decent road inside, and even need to carefully explore, so 4 kilometers per hour has been ideal.

This place has been discovered a long time ago, as early as 5000 years ago, there have been stories about the Mammoth Cave circulated, the cave also found a lot of traces of Native American activities, but the official discovery of exploration is in 1791, with more and more exploration adventures, the world's longest cave is gradually shown in front of people, but, at first, the length of this place is only less than 200 kilometers, with time, the length of this cave has been proven longer and longer.

In 2006, the length of the cave was more than 600 kilometers, and today it is 668 kilometers, although more than 200 years, there are countless explorers to enter exploration, the cave is endless, always find new cave passages, so how long has this place is still unknown, but, certainly, there are still many cave passages waiting to be discovered in the area. Of course, this is not just a simple cave, and its existence may be much more valuable than one might think.

As early as 1941, the Mammoth Cave National Park was established here, covering an area of nearly 21,000 hectares, which can be said to be quite large, and in 1981 it became a World Heritage Site, and in 1990 it became an International Biosphere Reserve. The cave not only has a variety of stalactites but even small lakes, rivers, and waterfalls, with stalagmites of different shapes and beautiful scenery.

Of course, if you want to enter the exploratory cave tour, you must wear a helmet, wear protective clothing, and the guide will always keep an eye on visitors to prevent tourists from getting lost or having accidents. This is such a cave, it has been explored the length of 668 meters if you want to explore the complete, may walk continuously for half a month can not be finished, and the length of the cave is still on the side of the length, I wonder if you are interested in coming here to explore and play it?

Science
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About the Creator

Su Wei Li

The invention is one percent inspiration and ninety-nine percent perspiration。

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