the mine of san josé (mina san josé) is about north of copiapó, in the region of atacama. the miners were trapped at about deep and about from the entrance of the mine. the mine has had accidents in the past, including one death. a report from the chilean government from july 2010, said that the owners of the mine did not "reinforce the roof." the lack of reinforcement "led to an earlier collapse of the roof". there has been controversy over why the mine was not closed down earlier.