Abandoned Mine Inventory for Ontario

MINES (last updated: 2022-04-29 )

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Abandoned Mine Identifier: 07781

General Information

Permanent Link to this Record: 07781


Abandoned Mine Identifier: 07781

Official Name: Rock Lake

Site Classification: C

Primary Commodity: Silver

Long Name: 2017280051400

Date Mine Opened:

Date Mine Closed: 1903-12-31

Mine Closure Reason: Ceasing Production - Other

Mine Closure Plan: No

Rehabilitation Plan: No

Mine Plans on File: No

Legal Jurisdiction: Mining Act

Date Record Last Modified: 2006-04-11

Location Information

Township or Area: Aberdeen

District: Sault Ste. Marie

NTS Number: 041J05

Longitude (dd): -83.73426 | Latitude (dd): 46.44117

UTM Zone: 17 | Easting: 289973 | Northing: 5146699

Operational Access Description: Access; Take Hwy 561 North From Bruce Mines For Approx. 15 Km. To A Point North Of The Rock Lake Rd. Turn-off Close To The North End Off An Existing Cemetery On The Top Of A Large Bedrock And Gravel Hill. Walk West Behind A Large Workshop Owned By Mr. Labelle For 100 M. And The First Feature(adit) Is On The South Slope Of A Large Outcrop Ridge. The Shaft And Vent Raise Is Located Approx. 200 M. Northwest Of The Adit Are On The South Edge Of A Large E-w Swamp. Historical Documents State That Two Adits, Vertical 3 Compartment Shaft, To 128m; Levels At 30,61,91m; 185m Of Lateral Development On 3 Levels; 2 Raises To Surface From 30m Level. Production Of 1,524,000 Lbs Cu From 93,300 Tons Of Ore By Rock Lake Mining Co. Ltd.; Commodity: Ag,au,cu; Year 2000 Survey Reports One Adit, One Open Pit One Raise To Surface And One Shaft As Well As Several Trenches And Tailings.


Hazard Feature Information

Mine Feature
Hazard Status
Condition
UTM Zone
Easting
Northing
Adit
Not Available
2020 Assessment- Exploration Adit Developed 1200' From The Southern Adit (amis Id 82945). Evidence To Suggest The Adit Was Driven Southwest Into The Bedrock Outcrop The Shaft Was Developed Through And Eventually Mined Out. Data Gap- Adit Was Not L
17
289961
5146710
Adit
Active
2000 Assessment; Adit Which Exits A Large Outcrop Ridge To The South Approximately 100 Metres Due West Of A House Located On The West Side Of Hi Way 561. 2020 Assessment- Adit With An Approximate Strike Of Nne. It Is Currently Open To Approximately 3
17
290119
5146470
Crown Pillar
Not A Hazard
2020 Assessment- Lateral Workings Are Present On Site. Crown Pillar Between Raise And Shaft Exists Based On The Site Inspection. Details Related To The Undergroud Development Are Very Limited. Historic Records Indicate Stope Wdths Of Up To 12.2 M. No E
17
289961
5146710
Crown Pillar
Not A Hazard
2020 Assessment- Crown Pillar Related To The Adit. Adit Is Driven Into A Bedrock Face And Cornw Pillar Thickness Increases Along Strike Of The Adit. No Evidence To Suggest Crown Pillar Instability However Lack Of Data Has Created A Data Gap. No Mitigat
17
290119
5146470
Mill, Mill Foundation
Active
2020 Assessment- Amis Records Indicate This Feature Belongs To Indian Lake Mine(07782). Stamp Mill Foundation Is A Potential Hazard. Potential Environmental Concerns Related To Miling. Limited Data Availbale. Potential Environmental Concerns.
17
287909
5147716
Open Cut
Active
2000 Assessment; Large Open Cut Located Where The Plans (old) Indicated Another Possible Adit. The Cut Is Rectangular, Opens To The West. 2020 Assessment- Exploration Trench Driven Along Mineralized Zone. Walls Are Steep But Stable. The Trench Is Open
17
290097
5146517
Open Pit
Not A Hazard
2000 Assessment; Pit 3 Located Another 10 Meters East Of Pit 2 Along The Outcrop Ridge Above The Adit And East Of The Open Cut Area. 2020 Assessment- Circular Pit With A Diameter Of 5m. Filled With Organic Debris, Stable Walls And A Fall Hazard Less Th
17
290105
5146506
Other Infrastructure
Active
2020 Assessment- Railbed Connecting Rock Lake Mine To Rock Lake Mill. Approximately 3 Km In Length And Runs Through The Woods And Across An Unnamed Lake. Area Is Overgrown. Potential That The Railbed Was Constructed Using Waste Rock. Potential Environ
17
289758
5147058
Raise To Surface
Active
2020 Assessment- Ventilation Raise Developed North Of The Shaft. No Other Information Is Available. Data Gap- Raise Has Not Been Located And Records Of Rehabilitation Do Not Exist.
17
289961
5146710
Raise To Surface
Active
2000 Assessment; Raise To Surface At A Location Close To The Main Shaft Workings. Water Filled. Feature Is Signed And Fenced. 2020 Assessment- Open Raise To Surface Located Northwest Of The Shaft. The Mine Workings Are Flooded However An Unflooded Void
17
289950
5146723
Shaft - 2 Compartment - Vertical Shaft
Active
2000 Assessment; Large Two-compartment Shaft East Of The Two Trenches And Raise. Feature Is Surrounded By Fence That Is Down In Several Places. Feature Is Obscured By Bush. One Warning Sign Posted On West Flank. 2020 Assessment- Open Shaft With A Bedro
17
289971
5146697
Trench
Not A Hazard
2000 Assessment; Trench Is A Long Rock Trench Used For Prospecting And Sampling Along The Mining Zone. 2020 Assessment- Overgrown Exploration Trench Less Than 1 M Deep. Not A Hazard. Stable Walls With A Fall Hazard < 3m.
17
289969
5146725
Trench
Not A Hazard
2000 Assessment; F-2 Is A Trench Located Just South Ot The Adit Enterence Which Is Bermed By Rock On Both Sides. This Feature Is Easily Visible And Poses No Hazard. 2020 Assessment- Exploration Trench Driven Along Mineralized Zone And Leads To Adit. Th
17
290114
5146454
Trench
Not A Hazard
2000 Assessment; Trench 2 Is Typical Of Many Of The Prospecting Trenches Along The Strike To The Adit And Mineralization. Low Profile, Long And Mainly To Bedrock For Sampling/exposure. Non-hazardous. 2020 Assessment- Overgrown Exploration Trench Less T
17
290045
5146509
Trench
Not A Hazard
2000 Assessment; Trench 3 Is Located 100 Meters To The West Of The Adit Along The Outcrop. Ridge In Which The Adit Is Located. 2020 Assessment- Overgrown Exploration Trench Less Than 1 M Deep. Not A Hazard. Stable Walls With A Fall Hazard < 3m.
17
290044
5146511
Trench
Not A Hazard
2000 Assessment; Pit 2 Is Located On Outcrop To The East Of The Main Open Cut For Sampling/exposure. 2020 Assessment- Overgrown Exploration Trench Less Than 1 M Deep. Not A Hazard. Stable Walls With A Fall Hazard < 3m.
17
290097
5146517
Trench
Not A Hazard
2000 Assessment; Trench In Rock, Overgrown With Bush, Difficult To Visualize. 2020 Assessment- Overgrown Trench Less Than 1 M Deep. Not A Hazard. Stable Walls With A Fall Hazard < 3m.
17
289966
5146733
Trench
Not A Hazard
2000 Assessment; Pit 1 Is Located Approximately 150 Meters Northwest Of The Adit On The Outcrop. Ridge - Non-hazardous In Nature. 2020 Assessment- Overgrown Exploration Trench Less Than 1 M Deep. Not A Hazard. Stable Walls With A Fall Hazard < 3 M.
17
290097
5146517
Waste Rock Dump
Active
2000 Assessment; Two Waste Rock Piles Exist At This Location But Are Treated As One Along With A Rock Pile Close To The Treatment Area And Concrete Pad Northwest Of The Shaft Area. Coordinates Approximated From Site Map. 2002 Amec Assessment: No Tailin
17
289993
5146710

Mineral Deposit Identifier: MDI41J05NE00002


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Contact

Emilie Trottier
Mine Hazards Technical Specialist
Mine Rehabilitation Group
Willet Green Miller Center - Level B6
933 Ramsey Lake Road
Sudbury ON P3E 6B5
Email: emilie.trottier@ontario.ca
Phone: 705-280-8658


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