In the 1990s, commercial diamond mining began around Lac de Gras in the Northwest Territories of Canada. Since then, the Diavik Diamond Mine (bottom) and Ekati Diamond Mine (top) have produced a combined 15 million carats of diamonds each year — an annual output of 6,600 pounds (3,000 kg). The final frame shows a close-up view of Diavik, with its two primary open pits, waste ponds, processing facilities, and an airstrip capable of landing aircraft as large as 737s and C-130s. | Daily Overview