Description
Surface Coal Mining; Underground Coal Mining; Iron Ore Mining; Gold Ore and Silver Ore Mining; Copper, Nickel, Lead, and Zinc Mining; Other Metal Ore Mining; Dimension Stone Mining and Quarrying; Crushed and Broken Limestone Mining and Quarrying; Crushed and Broken Granite Mining and Quarrying; Other Crushed and Broken Stone Mining and Quarrying; Construction Sand and Gravel Mining; Industrial Sand Mining; Kaolin, Clay, and Ceramic and Refractory Minerals Mining; Other Nonmetallic Mineral Mining and Quarrying