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
Charles E. Fipke a heavy mineral and diamond exploration research laboratory. In 1983, he founded Dia Met Minerals, which became listed on the Vancouver Stock Exchange in 1984. Dia Met was sold to BHP Billiton in 2001. In 1988, Fipke and partner Stu Blusson began a systematic search for diamonds in the Northwest Territories, leading to the discovery of the first diamond pipe in North America in November 1991 near Lac de Gras. The Ekati Diamond Mine is now located there. Fipke maintained a 10% interest in Ekati until 2014, when he sold his share to Dominion Diamond Corp. for . "I'm not