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
Center Rock be completed much faster than originally anticipated. Center Rock Center Rock, Inc. is a manufacturer of drilling equipment headquartered in Berlin, Pennsylvania. The company was founded in 1998 by Brandon W. Fisher. Center Rock made headlines in 2002 when its equipment was instrumental in the Quecreek Mine Rescue in Pennsylvania, in which nine miners were rescued after being trapped for 78 hours in a flooded mine. In 2010, Center Rock assisted in the rescue of 33 miners trapped for 69 days as a result of the Copiapó mining accident in Chile. The company provided a special hammer bit for the