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The lease licensed access to 59 square kilometers. Nautilus was allowed to mine to a depth of 1,600 meters for a period of 20 years. [47] [46] The company then began the process of gathering the materials and raising money for the project. [48] The intent was to mine a high grade copper-gold resource from a weakly active hydrothermal vent. [49]
The Orapa diamond mine is the world's largest diamond mine by area. The mine is located in Orapa, a town in the Central District of Botswana about 240 km (150 mi) west of the city of Francistown. Orapa ("resting place for lions") is owned by Debswana, a partnership between the De Beers company and the government of Botswana. [1]