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Amazing hole in the earth (3)

Bingham Canyon Mine Utah

 

Bingham Canyon Mine Utah

   

The Bingham Canyon Mine is a copper mine in the Oquirrh mountains, Utah. The mine is 0.75 mile (1.2 km) deep, 2.5 miles (4 km) wide. It is the world’s largest manmade excavation.

Monticello Dam California

The Monticello Dam is a dam in Napa County, California, United States most noted for its large circular spillway with a rate of 48,400 cubic feet per second.

 

   

Monticello Dam California

   

Kimberley Diamond Mine South Africa

The Kimberley Diamond Mine (also known as the Big Hole) holds the (disputed) title of being the largest hand-dug hole in the world. From 1866 to 1914 50,000 miners dug the hole with picks and shovels, yielding 2,722 kg of diamonds. Attempts are being made to have it registered as a world heritage site.

  

   

Kimberley Diamond Mine South Africa

 

  

   

   

   

   

   

   

   

Darvaza Gas Crater Turkmenistan 

Darvaza Gas Crater Turkmenistan

In 1971, geologists discovered a massive underground deposit of natural gas on this site. Whilst excavating the hole to tap the gas, the drilling rig collapsed leaving a massive hole. To prevent poisonous gasses from escaping, the hole was allowed to burn. It continues to burn to this day and has done so without ceasing. You can see a video clip of it burning here.

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