Hunt-Cornelius Rehabilitation Project

ERO number
026-0399
Notice type
Bulletin
Act
Environmental Assessment Act, R.S.O. 1990
Posted by
Ministry of Energy and Mines
Bulletin posted
Last updated

This notice is for informational purposes only. There is no requirement to consult on this initiative on the Environmental Registry of Ontario. Learn more about the types of notices on the registry.

Bulletin summary

The Ministry of Energy and Mines is proposing to rehabilitate mine hazards located in at the Hunt-Cornelius Mine. The rehabilitation activities include the installation of fencing and a stainless-steel gate around the hazards. Project planning is being carried out in accordance with the Class EA for Activities under the Mining Act.

Why consultation isn't required

The Hunt-Cornelius Rehabilitation Project is an undertaking subject to the Environmental Assessment Act. This proposed Category B project is being carried out in accordance with the Class Environmental Assessment for the Activities of the Ministry of Northern Development and Mines under the Mining Act. Consultation will be completed in accordance with requirements of the Class Environmental Assessment.

Bulletin details

Hunt‑Cornelius (AMIS #07283) is a former molybdenum mine that operated from 1916 to 1918. The site consists of privately owned surface rights, while the Crown retains ownership of the subsurface mineral rights. The objective of the project is to rehabilitate the physical mine hazards, which includes two shafts, two adits, two raises, and several interconnected potentially unstable crown pillars. The proposed rehabilitation work will include installing fencing around all potentially unstable crown pillars, as well as around all mine openings with the exception of one adit. This adit will be secured using a purpose‑built, engineered stainless‑steel bat‑friendly gate that will permanently restrict public access while still allowing bats to easily enter/exit the underground workings. The permanent fencing meets the requirements of the Mine Rehabilitation Code, as referenced in O. Reg. 35/24 under the Mining Act, for the closure of mine-related hazards and involve tree clearing 3 m along either side of the fence line to prevent future damage to the fence from falling vegetation. Installation of the bat gate will require drilling and limited tree removal to prepare the site and accommodate the structure. Work is anticipated to begin in fall 2026 with vegetation clearing and resume in spring 2027 with fencing, and installation of the bat gate during summer 2027.

Public consultation:

You are invited to provide input and express any concerns about this proposed project. Comments must be received by June 3, 2026.

For more information or to submit comments please contact:

ATTENTION: Eric Cobb
Mine Rehabilitation Project Manager
933 Ramsey Lake Road
Sudbury, ON P3E 6B5
minerehab@ontario.ca

Please note that personal information provided in a submission (such as name, address, and telephone number) and your views and opinions are being collected by MEM under the authority of the Environmental Assessment Act for the purpose of engaging in public consultation and making decisions regarding the project. The personal information may also be shared with the Environmental Assessment and Permissions Branch of the Ministry of the Environment, Conservation 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 the person listed above.

Applicant:

Ministry of Energy and Mines
Mine Rehabilitation Section
933 Ramsey Lake Road
Sudbury, Ontario
P3E 6B5

Location Details:

Part of Lot 8 and Lot 9, Concession 11 in Brougham Township, Renfrew County, Ontario

Site Location Description:

Approximately 7.7 km northeast of Tweed and 14 km east of the town of Calabogie.

Supporting materials

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Get in touch with the office listed below to find out if materials are available.

Mineral Development Office (Sudbury)
Address

933 Ramsay Lake Road
Floor B6
Sudbury, ON
P3E 6B5
Canada

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