William Finnegan (2015年4月20日). “Tears of the Sun The gold rush at the top of the world.”. http://www.newyorker.com/magazine/2015/04/20/tears-of-the-sun2015年4月13日閲覧. "Many mining towns are company towns. La Rinconada is the opposite. Nearly all the mines and miners here are "informal", a term that critics consider a euphemism for illegal. Ilasaca prefers "artisanal." The mines, whatever you call them, are small, numerous, unregulated, and, as a rule, grossly unsafe. Most do not pay salaries, let alone benefits, but run on an ancient labor system called cachorreo. This system is usually described as thirty days of unpaid work followed by a single frantic day in which workers get to keep whatever gold they can haul out for themselves."
