2010 Copiapó mining accident 2010 Copiapó mining accident The 2010 Copiapó mining accident, also known then as the "Chilean mining accident", began on Thursday, 5 August 2010 with a cave-in at the San José copper–gold mine, located in the Atacama Desert north of the regional capital of Copiapó, in northern Chile. Thirty-three men, trapped underground and from the mine's entrance via spiraling underground ramps, were rescued after 69 days. After the state-owned mining company, Codelco, took over rescue efforts from the mine's owners, exploratory boreholes were drilled, and seventeen days after the accident a note was found taped to a drill bit pulled back
2010 Copiapó mining accident means to find the men were sought. The accident happened soon after sharp criticism of the government's handling of the Chilean earthquake and tsunami. Chile's President, Sebastián Piñera, cut short an official trip and returned to Chile in order to visit the mine. Exploratory boreholes about in diameter were drilled in an attempt to find the miners. Out-of-date mine shaft maps complicated rescue efforts and several boreholes drifted off-target due to the extreme drilling depth and the extremely hard rock. On 19 August one of the probes reached a space where the miners were believed to be trapped but found