This astronaut photograph of the Bingham Canyon Mine shows parallel benches (stepped terraces) along the western pit face. These benches range from 16 to 25 meters high, and they provide access for equipment to work the rock face and maintaining the stability of the sloping pit walls. A dark, larger roadway is also visible directly below the benches. Brown to gray, flat-topped hills of gangue (waste rock) surround the pit, and are thrown into sharp relief by shadows and the oblique (from the side) viewing angle of the photograph. Reservoirs for leach water (associated with ore processing) are visible to the south of the city of Bingham Canyon.
This photograph was uploaded April 26th 2011 by carnkie.Copyright / re-use statement: Public Domain. NASA’s Earth Observatory
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