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Holes in the world (18 pics + 3 video)
Kimberley big hole in South Africa also has anthropogenic origin, previously here mined diamonds have now created a museum.
Giant crater Monticello «Glory Hole» - unregulated drain to control the water level at Monticello dam in California: upper diameter 21, 6 m, capacity of 1370 cubic meters. meters per second.
Katlavan in Ute is reputedly the largest artificial cavity in the ground. Development began in 1863 and still continues today, at this time the depth of 3/4 of a mile and 2.5 miles wide.
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World-renowned artist also enjoys the islands of Belize - Lighthouse Reef, which is furthest from the coast. About this atoll it is one of the most fascinating places on Earth - Great Blue Hole. It is believed that thousands of years ago this place was a common cave vault which collapsed under the influence of water, advancing to the mainland. Now it is one of the largest basins of such origin. The diameter of it - 300 meters, and the depth - 124 m. The dive on the surface of Blue Hole, you can see the coral and variety of fish, but at a depth of 38 meters, they disappear, leaving only the huge caves in the walls with stalactites up to 10 m.
Diamond development in Canada.
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Subsidence due to the rains in Guatemala. The hole had been buried at home with three people.
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