Legend (MGS/Michigan_MineFeatures_USGS_Topo_v9)

USGS_TopoMineSymbols_24k_Points (1) Adit Borrow Pit Clay Pit Gravel Pit Gravel/Borrow Pit - Undifferentiated Marl Pit Mine Mine Shaft Open Pit Mine Open Pit Mine or Quarry Prospect Pit Quarry Quarry - Limestone Quarry - Rock Sand Pit Sand and Gravel Pit Shale Pit Silica Mine <all other values> USGS_TopoMineSymbols_24k_Polygons (2) Borrow Pit Clay Pit Disturbed Surface Disturbed Surface - Pit Gravel Pit Gravel/Borrow Pit - Undifferentiated Marl Pit Mine Dump Open Pit Mine Open Pit Mine or Quarry Quarry Quarry - Limestone Quarry - Rock Sand Pit Sand and Gravel Pit Settling Pond Silica Mine Slag Pile Strip Mine Tailings - Pond Tailings - Undifferentiated <all other values> USGS_TopoMineSymbols_625k_Points (4) Adit Clay Pit Gravel Pit Gravel/Borrow Pit - Undifferentiated Marl Pit Mine Mine Shaft Open Pit Mine Open Pit Mine or Quarry Quarry Sand Pit Shale Pit <all other values> USGS_TopoMineSymbols_625k_Polygons (5) Borrow Pit Clay Pit Gravel Pit Marl Pit Mine Dump Open Pit Mine Open Pit Mine or Quarry Quarry Sand Pit Slag Pile Tailings - Pond Tailings - Undifferentiated <all other values>