Ключевые слова: adventure, coal, construction, craftsmanship, dirt, drilling, energy, environment, equipment, evening, excavation, exploration, extraction, gear, geology, glowing, helmet, industry, infrastructure, laboratory, laborer, light, machinery, mine, miner, mining, orange, passage, rocks, rugged, safety, scenery, shadows, silhouette, site, teamwork, tools, tracks, transportation, tunnel, underground, vest, work, worker, workforce,