Ключевые слова: adult, artisan, cave, coal, coal extraction, coal miner, coalfield, craft, darkness, determination, dirt, energy, environment, equipment, excavation, exploration, geology, grit, hard hat, hardworking, hazardous, headlamp, helmet, industrial, industry, labor, machinery, male, manual, mine, miner, mining, mining tube, portrait, profession, risk, rugged, safety, serious, shadows, skill, tunnel, underground, work, workforce,