Coal Resource Recoverability
A MethodologyU.S. Bureau of Mines Circular 9368
Table 5.-Surface production rates by mining method
| Mining method | Production per seam method | |
| 12 - 36 in | >36 in | |
| Contour stripping | 5,200 BCY1/shift | 6,500 BCY1/shift. |
| Area stripping | 8,500 BCY1/shift | 8,500 BCY1/shift |
| Auger mining | 175 tons/shift | 250 tons/shift. |
1BCY Bank Cubic Yards
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U.S. Department of the Interior, U.S. Geological Survey
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