McArthur River Mine

Cameco Corporation (Cameco) owns and is licensed to operate the McArthur River Mine site, located in northern Saskatchewan. The CNSC has full-time staff in Saskatoon and Ottawa who periodically perform inspections to evaluate operations and to verify compliance with regulatory requirements and licence conditions.

Facility Information

Aerial view of Cameco's McArthur River Mine site

Aerial view of Cameco's McArthur River Mine site

Location: Northern Saskatchewan
Licensee: Cameco Corporation
Status: Operating
Licence issued: November 1, 2013
Licence expires: October 31, 2023
Start of commercial operation: 1999

Licensing documentation: Request a copy of the McArthur River Mine licence and licence condition handbook by email

Cameco discovered the McArthur River ore body in 1988. Construction of the McArthur River Operation began in 1997, with mining beginning in late 1999. The mine is located approximately 620 kilometres north of Saskatoon, Saskatchewan. McArthur River is the world's largest high-grade uranium mine. For more information, visit Cameco's website.

Operating Performance of the McArthur River Mine

The CNSC produces an annual report on the performance of uranium fuel cycle and processing facilities, which includes the McArthur River Mine. The report provides information on events, facility modifications, and areas of increased regulatory focus. It also tracks data on:

  • public and worker radiation dose
  • lost-time incidents for workers
  • environmental monitoring results
  • environmental reportable spills and corrective actions taken
  • current financial guarantees for future decommissioning costs

Read the report to learn about operating performance of the McArthur River Mine.

Latest CNSC Facility-Specific Announcements

McArthur-River - decorative image

Disclosure Protocol

As part of CNSC's regulatory requirements, major licensees must have robust public information and disclosure programs in place. These programs, for major uranium mines and mills, include a disclosure protocol developed in consultation with community stakeholders.

Regulatory Reporting

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