Lac de Gras Lac de Gras Lac de Gras is a lake approximately north east of Yellowknife, in the Northwest Territories of Canada. Lac de Gras was the centre of the diamond rush of the 1990s. There are two working, and one closed, diamond mines in the area, Diavik Diamond Mine, Ekati Diamond Mine, and the care and maintenance Snap Lake Diamond Mine. It was called Ekati by aboriginal peoples. The lake is ultraoligotrophic but supports a slow-growing but stable population of some eight species of cold-water fishes, including round whitefish, cisco, and lake trout. Lake trout dominate the lake, both numerically and
Damtshaa diamond mine projected 31 year life of the mine. In 2003, the Damtshaa mine produced 292,000 carats (58.4 kg). Recovered ore grade averages about 0.06 carats (12 mg) per metric ton. The ore produced at Damtshaa is processed at a processing plant at its sister mine, the Orapa diamond mine, about distant. The Damtshaa mine is also managed from the Orapa mine, and is included in Orapa's and Letlhakane's safety and environmental programs, meaning that Damtshaa is also ISO 14001 certified. Damtshaa employs around 180 people. Damtshaa diamond mine The Damtshaa diamond mine is a diamond mine located in Botswana about west