First discovery by the Gouldie brothers


Various mining companies operate underground mines at Malartic:  Barnat, Canadian Malartic, East Malartic, Malartic Gold Fields and Sladen.


Drilling by the Osisko Mining Corporation (Osisko) defines Canadian Malartic Mine’s current surface deposit.


Osisko carries out consultation and permit and authorization processes.

The ore body of the Canadian Malartic Mine is located directly beneath a sector in the Town of Malartic. Osisko relocates more than 150 homes in a new neighbourhood.

August 2009

The Canadian Malartic Mine construction begins following a Québec government Order-in-Council. Construction requires a $1-billion investment.

Summer 2010

Green Wall is built to mitigate the noise and dust that may be caused by the Canadian Malartic Mine operations.

APRIL 13, 2011

First casting of a gold bar from the Canadian Malartic Mine.

May 2011

Commercial mining begins at the Canadian Malartic Mine.

June 2014

Agnico Eagle Mines Limited and Yamana Gold Inc. each acquire a 50% stake in Osisko and create the Canadian Malartic Partnership.


Discovery of East Gouldie.

November 2018

Casting of the 4 millionth ounce of gold from the Canadian Malartic Mine.

October 2019

As part of the Malartic Extension Project, open the deviation of a section of Highway 117 to motorists.

June 2020

Casting of the 5 millionth ounce of gold from the Canadian Malartic mine.

Canadian Malartic Partnership and four Anishinaabe First Nations sign an historic Cooperation Agreement.


Excavation of the portal and start of the ramp for the Odyssey Mine.

FEBRUARY 11, 2021

Yamana Gold Inc. and Agnico Eagle Mines Ltd. approve construction of the Odyssey Mine.

June 1, 2021

Serge Blais, Eng., appointed Vice President, Operations – Canadian Malartic Partnership

December 27, 2021

Casting of the 6 millionth ounce of gold from the Canadian Malartic mine.

November 29, 2022

First ounces of gold from the Odyssey Mine poured.

March 31, 2023

Agnico Eagle Mines Limited acquires 100% ownership of the Canadian Malartic Mine and the Odyssey Mine.

May 5, 2023

End of operations in the Canadian Malartic pit.

JUNE 28, 2023

Casting of the 7 millionth ounce of gold from the Canadian Malartic Mine.