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Legend (Pittsburgh)

Seam Mapping Boundaries (0)
Coal Outcrop Coal Outcrop
Stratigraphic Termination Boundary Stratigraphic Termination Boundary
Temporary Mapping Boundary Temporary Mapping Boundary
Final Mapping Extent Final Mapping Extent
Adequate Data Control Boundary Adequate Data Control Boundary
Merge/Split Line Merge/Split Line
Mined Out Areas (1)
Underground Mined Underground Mined
Surface Mined Surface Mined
Auger Mined Auger Mined
Highwall Mined Highwall Mined
Remaining Coal (2)
Study Area (3)