Mitchell

KSM Project gets provincial approval

Posted by William Colgan on November 03, 2014
Applied Glaciology, Climate Change, Glaciers and Society / No Comments

The Kerr-Sulphurets-Mitchell (KSM) gold mine in British Columbia received provincial approval last week. The federal permitting decision is expected in November. The suite of three open pits are in close proximity to glaciers, with the ultimate outline of the Mitchell pit intersecting the present extent of Mitchell Glacier. The proponent report filed by Seabridge Gold Inc states: “The current recession rate of the Mitchell Glacier has been estimated by Seabridge geologists at 100 m per year. As mining progresses, melting of the ice is expected to clear the area for the ultimate pit and create space needed for a series of diversion dams and ponds as well as the required debris catch basins upstream of the diversion inlets.” Seabridge is also seeking to excavate a 22 km long haulage tunnel that will convey 120,000 tonnes per day of ore underneath glaciers north of the open pits. A 38 km long glacier road, which ascends Berendon Glacier, crosses a local topographic divide, and descends an unnamed glacier, will provide winter access to the trio of open pits. The Berendon Glacier access road would be close proximity to the Knipple Glacier access road proposed by Pretium Resources Inc to access the nearby Bruce Jack Mine. Presumably the KSM project will be keeping a close eye regional glacier projections!

Controversial Canadian KSM mine gets key govt. permits

KSM (Kerr-Sulphurets-Mitchell) Project: Canadian Environmental Assessment Agency

KSM_glacier_road

Kerr-Sulphurets-Mitchell Project glacier access road during the winter. The road ascends Berendon Glacier in the east, crosses the local topographic divide, and descends an unnamed glacier in the west.

KSM_site_map

Site map of the Mitchell Pit at the Kerr-Sulphurets-Michell gold mine. Purple line denotes haulage tunnel. Dashed black line denotes ultimate extent of Mitchell Pit. White areas denote glacier extent.

 

Tags: , , , , , ,