Giant Mine Information Centre

Information on the Giant Mine Remediation Project, including contacts, procurement, regulatory context, and the history of the former mine.

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About the Giant Mine Remediation Project

Between 1948 and 2004, Giant Mine was a major economic driver for Yellowknife and the Northwest Territories. When the mine stopped operating and Canada became the site custodian, attention focused on the environmental issues left behind. The most notable is the 237,000 tonnes of arsenic trioxide stored in underground chambers.

The Giant Mine Remediation Project proposes to leave behind a site that provides an opportunity for many future uses by the community, as determined by the community.

The Project's main objectives are to:

The Project's primary goal is to protect human health and safety and the environment. This requires long-term containment and management of the arsenic trioxide waste and water treatment, as well as cleaning up the surface of the site.

Guidelines set out the Project's commitments on environmental protection, public and worker health and safety, and community engagement.

These guidelines were developed with input from:

The Giant Mine Remediation Project is funded through the Northern Abandoned Mine Reclamation Program.

More information about the Project team.

How do I do business with the Project?

The majority of the work associated with the Giant Mine Remediation Project is being contracted by the Main Construction Manager, Parsons Inc. For more information, please visit their website at or Merx.

How do I contact the Project team?

Do you have questions about the Giant Mine Remediation Project? Members of the public can contact us by email at or call (867) 669-2426. We appreciate public feedback on the project, and will respond to your questions in a timely manner.

If you are a member of the media looking for information or to conduct an interview, you can contact our Communications Officer, Daniella Vaniersel. She can be reached by email or at (873) 353-3603.

Where can I find more information about the remediation project?

This unique and complex Project has undergone extensive expert and public review. The Closure and Reclamation Plan is robust and diligent, and supports the Government of Canada's commitment to ensuring the health and safety of the public and protection of the environment.

A public registry compiles reports and studies about Giant Mine related to the remediation plan. This includes:

Hard copies of these reports are available at the Giant Mine Remediation Project Office. For more information, please contact the Project team at or call (867) 669-2426.

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