During the life-of-mine operations, the Casino Project will produce an estimated 5.72 million ounces of gold, 30.26 million ounces of silver, 3.58 billion pounds of copper, and 325 million pounds of molybdenum. Here are some additional details about the proposed project.
Access to the project site includes
- Construction of approximately 120 km of new all-weather gravel access road. This will be an extension of the Freegold Road and will generally follow the historic Casino Trail.
- Upgrade of the existing Freegold Road including a bypass around the Village of Carmacks and a new bridge over the Nordenskiold River.
- Traffic volumes are expected to be approximately 136 trucks per day during operations.
- Construction of a new 1 600 m airstrip and 14 km airstrip access road.
- Use and upgrading of the existing barge landing on the Yukon River.
Tailings management facility
- The Proposed Casino Mine tailings dam would be one of the world’s highest dams and the highest tailings dam. As such, the proposed dam would be unique on a global scale.
- In a northern environment climate.
- Built in an area with discontinuous permafrost conditions.
- Earth/rock fill dam constructed primarily of cyclone sand (desulphurized tailings form the mining operations so that they are non-acid generating).
- The main dam (or embankment) will have a final height of about 286 m (938 ft) and a width about 2.5 kms (1.6 miles).
- There will also be a smaller dam (west embankment, separated from the main embankment by a height of land) with a height of ~21 m (69 ft) and a length of ~300 m (984 ft).
- Casino’s proposed tailings management facility will retain:
- 956 million tonnes of tailings. 20 percent of which (approximately 191 million tonnes) will be potentially acid generating.
- 658 million tonnes of potentially acid generating waste rock.
- The tailings management facility will cover an area ~1 120 hectares (11.2 square km or 4.3 square miles).
Other main components of the project
The other main components of the Project include the Open Pit, the processing facilities, the Heap Leach Facility (HLF), temporary stockpiles, and associated mine infrastructure components.
- Open pit will cover an area ~300 hectares and have a maximum depth ~600 m.
- The HLF will cover an area ~158.7 hectares and contain ~157.5 million tonnes of crushed ore.
The project includes on-site LNG storage, regasification, and power generation.
- The Main Power Plant will have a total nominal capacity of 150 MW. During normal operations the plant will supply approximately 130 MW.
- LNG will be stored in a 10 000 m³ storage tank at the mine site.
- LNG will be trucked from Fort Nelson, British Columbia. 11 trucks per day during the operations phase.
The Project is located within three First Nations Traditional Territories
- The mine site and a portion of the access road are located within SFN Traditional Territory.
- The access road is located within LSCFN Traditional Territory.
The barge access road and water withdrawal point on the Yukon River is located within TH Traditional Territory.