Ключевые слова: america, andes, bolivia, bolivian, boy, cerro, city, closely, coal, connected, dangerous, deposit, extraction, hard, helmet, high, hill, history, industry, lamp, latin, life, man, metal, mine, miner, miners, mines, mining, mount, mountain, old, ore, people, poor, potosi, poverty, production, rich, rico, risk, silver, south, spanish, travel, urban, view, work, worker, zinc,