Compañía Minera San Esteban Primera workers at this mine were paid around 20% higher wages than at other Chilean mines, due to its poor safety record. The San José Mine is located 45 kilometers northwest of Copiapó. It began operations in 1889. In 1957, Jorge Kemeny Letay, a Hungarian immigrant founded the San Esteban Mining Company (). The San José Mine () is a small copper-gold mine located near Copiapó, Atacama Region, Chile. The mine was the site of a 2010 collapse which trapped 33 miners underground. Its workings are reached by a long sloping roadway with many spiral turns (a diagram shows ten turns),
Sheppton Mine disaster and rescue Sheppton Mine disaster and rescue The Sheppton Mine disaster and rescue in Sheppton, Pennsylvania, United States, was one of the first rescues of trapped miners accomplished by raising them through holes bored through solid rock, an event that gripped the world's attention during August 1963. The roof of the Sheppton anthracite coal mine collapsed on August 13 and three miners were trapped 300 feet below ground. A small borehole was drilled from the surface in an attempt to contact the miners. After several days a borehole successfully reached a mine, and revealed that two of the miners, Henry Throne and