All 33 Miners Rescued, 2010 Copiapó Mining Accident, Chile

Hours later, cameras sent down the bore hole made contact with the miners, taking the first images the trapped workers. The miners had a 50 square meter shelter with two long benches, but ventilation problems had led them to move out to a tunnel. In addition to the shelter, they had some 2 km galleries in which to move around. The miners used backhoes to dig for trapped water. Some water was obtained from the radiators vehicles inside the mineshaft. Health ficials are running tests on the water. Food supplies were limited and the men may have lost 8 to 9 kg (17–20 pounds) each. Although the emergency supplies were intended for only two or three days, the miners rationed them to last for 17 days until contact with the surface. They consumed "two little spoonfuls tuna, a sip milk and a biscuit every 48 hours" and a morsel peach. They used the batteries a truck to power their helmet lamps.
Key members
Luis Alberto Urzua (54), shift supervisor the trapped miners, recognizing the gravity the situation and the difficulty any rescue attempt, gathered the men in a secure room called a "refuge", and organized the men and meager resources for a long term survival situation. Just after the incident, he led three men to scout up the tunnel, confirming the situation, then making detailed maps the area. He then led with surface engineers the rescue operation approaches