Overlooking the Salmon Glacier, the Granduc Mine is a large copper mine which is situated on a rock ridge between a glacier and a cliff, some 22 miles (35 km) north of Stewart, BC at the north end of Summit Lake.
It was an active mine from 1964 to 1984, having closed due to low copper prices.
Site construction and ground rehabilitation, began in 2014 with active production expected for 2016.
[3] Inventory in 1986 was reported as 9.89 million Metric tonnes grading 1.79 per cent copper,[4] while recent results indicate resources stand at 10.4 million tonnes grading 1.25 per cent copper.
A large avalanche killed 28 men on February 18, 1965 when a snow slide hit the mine camp.