NOC 8231 – Underground production and development miners



Underground production and development miners drill, blast, operate mining machinery, and perform related duties to extract coal and ore in underground mines and to construct tunnels, passageways and shafts to facilitate mining operations. They are employed by coal, metal and non-metallic mineral underground mines and by specialized contractors in mine construction, shaft sinking and tunnelling.

Mobility is possible to other occupational groups in underground mining such as underground service and support occupations.

There is mobility between employers within each of the three following sectors: underground coal mining, underground hard rock mining and underground potash, salt or soft rock mining.

Mobility between these sectors is somewhat limited by differences in production technologies.

Progression to mining supervisor is possible with experience.

Main Duties

Underground production and development miners perform some or all of the following duties:

  • Set up and operate drills and drilling machines to produce a designated pattern of blasting holes
  • Operate diamond drills or other specialized drills such as raise boring machinery to test geological formations or to produce underground passageways
  • Set up and operate mining machinery to shear coal, rock or ore from the working face
  • Load explosives, set fuses, and detonate explosives to produce desired blasting patterns and rock fragmentation in underground mines
  • Operate scooptram, load-haul-dump (LHD) machine or mucking machine to load and haul ore from stopes, drifts and drawpoints to ore passes
  • Perform duties required to ensure safety and to support the mining advance, such as scaling loose rock from walls and roof, drilling and installing rock bolts, extending and installing air and water pipes, operating ore loading machinery, inspecting mine shafts, operating hoists that transport people, equipment and materials through mine shafts, and constructing timber supports and cribbing if required
  • Perform routine maintenance of mining machinery.

Employment Requirements

  • Completion of secondary school is usually required.
  • Formal training of up to six weeks followed by extended periods of specialized training as a helper or in support occupations is usually provided.
  • Previous experience as a mine labourer or in other mine occupations is usually required.
  • Provincial blasting licence may be required.
  • May be certified in the basic common core program or as an underground hard rock miner in Ontario.
  • Trade certification for miners is available, but voluntary, in Quebec and Manitoba.
  • Company licensing or certification is often required for occupations in this unit group.
  • Certificate in first aid may be required.

All Titles

  • apprentice miner
  • bench blaster – underground mining
  • blast hole driller – underground mining
  • blaster – underground miningshotman – underground mining, shotwoman – underground mining
  • blockholer – underground mining
  • bolter operator – underground mining
  • brine well tender
  • chute blaster
  • chute blaster – underground mining
  • coal miner
  • continuous mining machine operator
  • core driller
  • core driller – underground mining
  • core-drill operator
  • core-drill operator – underground mining
  • cutting machine operator – underground mining
  • development miner
  • diamond driller – underground mining
  • diamond-drill operator
  • diamond-drill runner – underground mining
  • diamond-point drill operator
  • diesel loaderman/woman – underground miningdiesel loaderman – underground mining, diesel loaderwoman – underground mining, loaderman, diesel – underground mining, loaderwoman, diesel – underground mining
  • downhole loader – underground mining
  • drift driller – underground mining
  • drift miner
  • driller – underground mining
  • driller, drift – underground mining
  • driller, long-hole – underground mining
  • driller, rotary raise – underground mining
  • drilling machine operator – underground mining
  • faceman/woman – coal minefaceman – coal mine, facewoman – coal mine
  • hang-up blaster – underground mining
  • hardrock miner
  • hardrock miner apprentice
  • high-raise blaster
  • hoist operator – underground mininghoistman underground mining, hoistwoman underground mining
  • hoistman/woman underground mining
  • hydraulic coal monitor operator
  • in-hole drill operator – underground mining
  • ITH (in-the-hole) driller
  • jack leg drill operator – underground mining
  • jumbo drill operator
  • jumbo drill operator – underground mining
  • LHD (load-haul-dump) operator – underground mining
  • loaderman/woman, diesel – underground mining
  • load-haul-dump (LHD) operator – underground mining
  • loading machine operator – underground mining
  • long-hole blaster – underground mining
  • long-hole driller – underground mining
  • longwall coal shearer operator
  • miner
  • mining machine operator
  • mucker – underground mining
  • mucking machine operator
  • mucking machine operator – underground mining
  • potash miner
  • powderman/woman – underground miningpowderman – underground mining, powderwoman – underground mining
  • production driller
  • production loader operator
  • production miner
  • raise boring machine operator – underground mining
  • raise driller – underground mining
  • raise minerraiseman, raisewoman
  • raiseman/woman
  • ring drill operator
  • roadheader operator
  • rockbolter
  • roof bolter
  • rotary raise driller – underground mining
  • scoop operator – underground mining
  • scooptram operator
  • scooptram operator – underground mining
  • shaft driller
  • shaft inspector
  • shaft miner
  • shearer operator – underground mining
  • shearing machine operator – underground mining
  • shot firer
  • shot firer – underground mining
  • shotman/woman – underground mining
  • slusher operator – underground mining
  • soft rock miner
  • stope driller – underground mining
  • stope miner
  • undercutter operator – underground mining
  • wagon drill operator – underground mining


  • Drillers and blasters – surface mining, quarrying and construction (7372)
  • Mine labourers (8614)
  • Supervisors, mining and quarrying (8221)
  • Underground mine service and support workers (8411)



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