Canada’s largest operating open-pit gold mine

With its Canadian Malartic and Barnat open pits, Canadian Malartic Mine is Canada’s largest operating open-pit gold mine. We are located in the Town of Malartic, in the heart of Québec’s Abitibi Gold Belt.

Developing the Barnat gold deposit, which is an extension of the current pit, is the result of the Malartic Extension Project. Started in 2017, this project first consisted of the construction of a 4-kilometre or so deviation of Route 117 to the east of the Town of Malartic. The deviation was opened to traffic in the fall of 2019 allowing the pre-commercial production of the Barnat pit.

 

BY THE NUMBERS

CONTINUOUS
OPERATION

24 HOURS A DAY, 7 DAYS A WEEK

CMM POURED ITS SIX MILLIONTH OUNCE OF GOLD IN DECEMBER 2021!

OUR PRODUCTION IN 2021:
22 million tonnes of ore
processed at the plant
714 784 ounces of gold
produced

nearly
1,700 FULL-TIME WORKERS ON THE MINE
SITE IN 2021

MORE THAN 700 CMM EMPLOYEES AND MORE THAN 950 CONTRACTOR EMPLOYEES

Operations
expected
to continue through 2029

A FLEET OF
MORE THAN
100 pieces
of mobile equipment

3.53 MILLIONS ounces of gold AT 1.09 G/T OF GOLD

PROVEN AND PROBABLE RESERVES AT DECEMBER 31, 2021

THE MINE IN DETAIL

The Canadian Malartic Mine has introduced numerous measures to reduce the potential impact of its operations, including:

  • Air quality measuring stations;
  • Dust prediction software;
  • Water trucks to spray roads and loads to reduce dust emission;
  • Acoustic stations;
  • Real-time noise tracking software.

We can completely shut down equipment when dust levels approach the levels permitted by the air quality standard or when noise levels approach the noise limits indicated in municipal by-laws and the Environmental Quality Act.

Equipment was down for more than 10 000 hours in 2021.

In 2021, the Canadian Malartic Mine fully complied with Québec standards governing air* quality, water quality, and noise. Furthermore, compliance with blasting standards was 99.3%.

* Pursuant to the Clean Air Regulation. From May 8, 2015, to December 31, 2021.

CONSULT OUR 2021 ANNUAL REPORT (AVAILABLE IN FRENCH ONLY)

  • The plant processed 57,000 tonnes of ore per day in 2021, on average, depending on operational availability, which was 95.9%.
  • The plant includes a crushing circuit consisting in primary and secondary crushers, which is followed by a grinding circuit. The milled ore then goes through a leach circuit, where the gold and silver are dissolved and then recovered by absorption on activated charcoal before being poured into bars. The average gold recovery rate at the Canadian Malartic Mine was approximately 89,7% in 2021.
  • The Canadian Malartic pit will be 2 km long, 900 metres wide and 380 metres deep.
  • The Barnat pit will be 1.7 km long, 750 metres wide and 380 metres deep.
  • The waste dump will be 100 metres high.

When mining ceases, we plan to, among other things:

  • Revegetate the entire tailings pond and waste rock pile surface.
  • Fill the Canadian Malartic pit with mine tailings and piled waste rock from the Barnat open pit and the Odyssey underground mine operations and at the end of the underground mining operations, allow them to flood with natural groundwater and precipitation.
  • Secure the site and restore its natural appearance by conducting all required environmental monitoring.
LEARN MORE ABOUT THE RESTORATION OF OUR SITE