Establishments primarily engaged in mining or quarrying crushed and broken limestone, including related rocks, such as dolomite, cement rock, marl, travertine, and calcareous tufa. Also included are establishments primarily engaged in the grinding or pulverizing of limestone, but establishments primarily engaged in producing lime are classified in Manufacturing, Industry 3274.

  • Calcareous tufa, crushed and broken-quarrying
  • Cement rock, crushed and broken-quarrying
  • Chalk mining, crushed and broken-quarrying
  • Dolomite, crushed and broken-quarrying
  • Lime rock, ground
  • Limestone, except bituminous: crushed and broken-quarrying
  • Marl, crushed and broken-quarrying
  • Travertine, crushed and broken-quarrying
  • Whiting mining, crushed and broken-quarrying