Troilus Mining Project

Troilus Gold Corp. is proposing the construction and operation of a new open-pit gold and copper mine located approximately 70 kilometres northwest of the Cree community of Mistissini and approximately 170 kilometres north of Chibougamau, Quebec. As proposed, the Troilus Mining Project would include a new mill complex and new waste rock and overburden piles. The project would also include the mining of two former open pits and the reuse and expansion of the existing waste rock and overburden piles. The project would have a maximum ore production capacity of 40,000 tons per day and a 15-year life span.


This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.


Latest update

June 25, 2022 — The public comment period on the summary of the initial project description is closed at midnight PDT (3:00 a.m. EDT). The Impact Assessment Agency of Canada is currently reviewing all comments received to prepare the summary of issues.

June 1, 2022 — The Impact Assessment Agency of Canada is making funding available to assist the participation of the public and Indigenous groups in the federal impact assessment for this project. Applications received by July 1, 2022, at midnight PDT (3:00 a.m. EDT), will be considered.


Key documents

Key documents
Document Number Document Title File Date
8 Guiding Questions in Planning Phase PDF (184 KB) June 8, 2022
7 Powerpoint Presentation - June 2022 Virtual Information Sessions PDF (1.4 MB) June 8, 2022
6 Agreement concerning the Troilus external federal assessment process under the James Bay and Northern Quebec Agreement and the Impact Assessment Act PDF (1.8 MB) June 3, 2022
3 Initial Project Description PDF (41.1 MB) April 29, 2022
2 Summary of the Initial Project Description (Updated June 13, 2022) PDF (701 KB) April 29, 2022

List all records


Troilus Mine Project
Impact Assessment Agency of Canada
901-1550, Estimauville Avenue
Québec, Quebec G1J 0C1
Telephone: 418-455-4116

  • Location

    • Municipality of Baie-James (Quebec)
  • Nature of Activity

    • Mines and Minerals
  • Assessment Status

    In progress
  • Start Date

  • Proponent

    Troilus Gold Corp.
  • Authorities

    • Impact Assessment Agency of Canada
  • Assessment Type

    Planning Phase for Impact Assessment
  • Reference Number

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