Rock Lake Mine North rehabilitation project
Learn about the environmental assessment process for the rehabilitation of mine hazards at Rock Lake Mine.
Current Status
Notice of opportunity to provide input.
Project summary
The Rock Lake Mine (AMIS #07781) is a former gold, silver and copper mine that operated from 1899 to 1903. The mine is located off Highway 638, in the Township of Plummer Additional, approximately 16 kilometres north of Bruce Mines, Ontario.
The mine property can be divided into a northern area accessed by a private trail and a southern area accessed via a residential driveway.
The purpose of the project is to rehabilitate the mine hazards located in the northern portion of the mine, referred to here as Rock Lake Mine North.
Mine hazards include:
- a shaft
- two raises
- a stope to surface
- multiple crown pillars
The mine openings to surface are all currently flooded with no egress provided.
The proposed rehabilitation strategy for all mine workings is to backfill. Access will be provided by an existing roadway off Highway 638, with limited access improvements required. Some tree removal may be needed to facilitate the placement of the backfill.
The work is expected to occur over several months, during the fall of 2025, outside of the active period for bats and birds.
Proponent
Ministry of Mines
Location
Township of Plummer Additional, Algoma District
Type
Bulletin
Reference number
Environmental Registry of Ontario number: 025-0069
Contact
Michaela Haring, Environmental Planner
Mine Rehabilitation Section
933 Ramsey Lake Road
Sudbury, Ontario
P3E 6B5
Telephone:
Email: Michaela.Haring2@ontario.ca
Notice of opportunity to provide input on a category B project (2023)
We invite you to comment on the Rock Lake Mine North Rehabilitation Project.
The proposed rehabilitation activities have been screened as a category B project with low potential for environmental effects. The undertaking is being carried out in accordance with the Class Environmental Assessment for Activities of the Ministry of Northern Development and Mines under the Mining Act (amended 2018).
We have identified environmental effects associated with the undertaking, which can be mitigated using standard measures. A summary of negative environmental effects and proposed mitigation measures that would negate or reduce their significance is provided in the project description, which you can find with the supporting material for this project on the Environmental Registry of Ontario.
We invite you to provide input and express any concerns about this proposed project. For more information, or to submit comments, visit the posting for this project on the Environmental Registry of Ontario or contact:
Michaela Haring, Environmental Planner
Mine Rehabilitation Section
933 Ramsey Lake Road
Sudbury, Ontario
P3E 6B5
Telephone:
Email: Michaela.Haring2@ontario.ca
Your privacy
Personal information you provide in a submission (such as name, address and telephone number) and your views and opinions are being collected by the ministry under the authority of the Environmental Assessment Act for the purpose of engaging in public consultation and making decisions regarding the project.
Your personal information may also be shared with the Environmental Approvals Branch of the Ministry of the Environment, Conservations and Parks. The collection, use and disclosure of this information are all governed by the Freedom of Information and Protection of Privacy Act.
Questions about the collection of this information should be directed to:
Michaela Haring, Environmental Planner
Mine Rehabilitation Section
933 Ramsey Lake Road
Sudbury, Ontario
P3E 6B5
Telephone:
Email: Michaela.Haring2@ontario.ca