Diavik Diamond Mine This is the largest diamond ever found in North America. Diavik Diamond Mine The Diavik Diamond Mine is a diamond mine in the North Slave Region of the Northwest Territories, Canada, about northeast of Yellowknife. Diavik Diamond Mine is an industrial complex set in a remote, sub-Arctic landscape. It consists of four kimberlite pipes associated with the Lac de Gras kimberlite field and is located on an island in Lac de Gras and is informally called East Island. It is about south of the Arctic Circle. In the 2015 satellite image below, one can see the two main open pits,
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