Lac de Gras a wide and long stream called the Narrows. The median flood peak discharge in the Narrows is making it an important corridor for fish movements. 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
Baken diamond mine Baken diamond mine The Baken diamond mine is a diamond mine located along the lower Orange River in South Africa. The mine is owned and operated by Trans Hex. The central processing plant has been operational at Baken since 2001. In 2004 the Baken mine produced ; average stone size for the year was . Notable stones from production in 2004 included a , D colour flawless diamond that sold for over $1.8 million USD; and a pink diamond sold for over $1.0 million USD. Probable reserves are 21.2 million cubic meters of ore at an ore grade of per