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Open-pit mining
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Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique that extracts rock or minerals from the earth.
Rock blasting at the large open-pit Twin Creeks gold mine in Nevada, United States. Note the size of the excavators for scale (foreground, left), and
Rock blasting at the large open-pit Twin Creeks gold mine in Nevada, United States. Note the size of the excavators for scale (foreground, left), and that the bottom of the mine is not visible.
The giant bucket-wheel excavators in the German Rhineland coal mines are among the world's biggest land vehicles.
The giant bucket-wheel excavators in the German Rhineland coal mines are among the world's biggest land vehicles.
Kittilä Gold Mine in Kittilä, Finland is the largest primary gold producer in Europe.
Kittilä Gold Mine in Kittilä, Finland is the largest primary gold producer in Europe.
Note the angled and stepped sides of the Sunrise Dam Gold Mine, Australia.
Note the angled and stepped sides of the Sunrise Dam Gold Mine, Australia.