Strip Mining
A double rack of cams?
An old coal strip mine south of Victoria, Illinois.
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Coal is mined in two ways – underground mines and surface mines.
a graphic illustrates the underground mining methods and surface mining
Coal strip Mining in Centralia, 1963
Strip mining
Earth movers strip mining for coal in West Virginia.
http://farm1.static.flickr.com/135/358741736_5395003852. Strip mining.
strip mining images
Surface mining.
Strip mining was less
Surface mining at the. Homestake Mining Co., Lead SD
Surface Mining
Over the winter the brook was blocked off by the open pit strip mining on
The U.S. Office of Surface Mining Reclamation
King Coal style - mountaintop removal strip mining, valleys filled up
This strip mine near Globe, Arizona in1990 gives a clear idea about how much
Surface or open pit mining ( strip mining ), or underground mining.
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