English: Sequence diagram of Mountaintop removal mining. Caption: "Step 2. The upper seams of coal are removed with spoils placed in an adjacent valley."
{{Information |Description = Sequence diagram of [[Mountaintop removal mining]]. Caption: "Step 2. The upper seams of coal are removed with spoils placed in an adjacent valley." |Source = http://www.epa.gov/region3/mtntop/process.htm |Date
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