Snap Lake Diamond Mine Snap Lake Diamond Mine Snap Lake Mine is a remote fly-in/fly-out operation located about northeast of Yellowknife, Northwest Territories, and, according to De Beers, was the first De Beers mine outside of Africa. It was also Canada's first completely underground diamond mine. Construction began with the opening of an access winter road in 2005. By the end of 2013, De Beers had spent US$1.8 billion on construction and mine operation. Of that total, De Beers spent US$1.3 billion with Northwest Territories-based contractors and suppliers, including US$723 million with Aboriginal businesses or joint ventures. The mine began commercial production on January
Historic Silver Mine in Tarnowskie Góry Adit, part of the Deep Adit Fryderyk, was the first to be exploited for tourism. In 1957, it was opened as a 600 metre long boat tour. The Historic silver mine opened in 1976. The visit in Historic Silver Mines starts in a interactive museum where tourists get the knowledge of methods of silver, lead and zinc ore extraction as well as underground mine drainage. Then tourists go underground. The trail is 1,749 meters long; 270 meters are travelled by boats. Outside the buildings of Historic Silver Mine there is an Open Air Steam Engine Museum. The new attraction of