In 2012, Dumas commenced underground development at Minto Mine in the Yukon. Originally an open-pit operation, Minto was transitioned by Capstone into a ramp-access portal underground mine with Dumas’ support.
The project consisted of two major work packages. The first was the development of the 118 Zone, which included longhole drilling and production mucking. The second package was in the M Zone, covering drill, blast, and production mucking services. Dumas also provided mechanical, electrical, and engineering services to support the expansion. The project was originally scheduled for 20 months but was extended through 2018 due to increased scope and strong performance.
Scope of Work
- Underground ramp-access and portal mine development
- Longhole drilling and production mucking in the 118 Zone
- Drill, blast, and mucking services in the M Zone
- Mechanical, electrical, and engineering support
