Abandoned Mine Inventory for Ontario

MINES (last updated: 2022-04-29 )

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Abandoned Mine Identifier: 07976

General Information

Permanent Link to this Record: 07976


Abandoned Mine Identifier: 07976

Official Name: Prace

Site Classification: B

Primary Commodity: Silver

Long Name: 2016700051800

Date Mine Opened: 1975-01-01

Date Mine Closed: 1985-12-31

Mine Closure Reason: Ceasing Production - Other

Mine Closure Plan: No

Rehabilitation Plan: No

Mine Plans on File: Yes

Legal Jurisdiction: Mining Act

Date Record Last Modified: 2012-01-27

Location Information

Township or Area: Vankoughnet

District: Sault Ste. Marie

NTS Number: 041K16

Longitude (dd): -84.25805 | Latitude (dd): 46.76779

UTM Zone: 16 | Easting: 709355 | Northing: 5183011

Operational Access Description: Access; Accessible By Road, Go East On Robertson Lake Road, Take Right Hand Road (southeast)at Approx. 8.5km West Of Buttermilk Hill, Pass By West Side Of Sill Lake. Some Sections Available In Assessment Files. 120m Underground Development. Small Scale Program In 1975, Locations Shown On Plan In File Vankoughnet Twp. 0010.; Commodity: Silver, Lead; Year 2000 Survey Reports 1 Portal And Decline Ramp, 1 Tailings Dam, 1 Open Pit, 1 Stope To Surface And 1 Adit.


Hazard Feature Information

Mine Feature
Hazard Status
Condition
UTM Zone
Easting
Northing
Adit
Not A Hazard
2000 Assessment; Open- The Entrance Is Steep, Water Filled, Hidden Behind Trees.(as Of Dec 08/2000) 2020 Assessment-exploration Adit Located North Of Portal (amis Is 79165). The Feature Is Very Small Cut In The Vertical Rock Face And Located Just Off
16
709353
5183011
Crown Pillar
Active
2020 Assessment-crown Pillar Located North Of The Adit (portal). The Decline Runs To The West Below The Open Cut And Thin Crown Pillar. Decline Runs Below The Open Cut That Was Previously Timbered And Backfilled. A Protion Of The Crown Pillar May Have
16
709347
5182990
Crown Pillar
Active
2020 Assessment-crown Pillar Located West Of The Open Cut.stope Was Developed Off The No. 1 Decline And Portions Of It Were Mined To Surface. Stope Width Is Estimated To Be 2 M. Literature Review Indicates The Crown Pillar Is Thin, Of Poor Quality And
16
709312
5183002
Open Cut
Active
2020 Assessment-blasted Channel (spillway) Through Bedrock. Steep Vertical Walls And Bedrock Bottom. Located Along The Northwest Edge Of Ta-west. Hidden In The Woods. Difficult Egress.
16
709114
5182945
Open Cut
Active
2020 Assessment-blasted Channel (spillway) Through Bedrock. Steep Vertical Walls And Bedrock Bottom. Located Along The Northwest Edge Of Ta-west. Hidden In The Woods. Difficult Egress.
16
709114
5182945
Open Cut
Active
2000 Assessment; Partially Filled In. It Appears That There Is A Hole (shaft Like Feature) At The Bottom Of The Open Cut. The Pit Is Deep And Has Steep Edges.(as Of Dec 08/2000) 2020 Assessment-open Cut To Surface That Has Been Timbered And Backfilled.
16
709328
5182990
Portal Or Decline Ramp
Active
2000 Assessment; The Decline Is Open And Surrounded By Wood Structure Of 4 Metres Wide X 4 Metres High By 20 Metres Long. (as Of Dec 08/2000) 2020 Assessment-adit (portal) Leads To The No. 1 Decline And Eventually To The No. 3 Decline And The 100 West
16
709357
5182980
Raise To Surface
Active
2020 Assessment-located 30 M Sw Of The Portal (amis Is 79165) As Part Of A Larger Concrete Structure. Upper Portion Of The Ventilation Raise Is Timber Cribbed Below The Concrete Structure (collar). Water Level Is Approximately 2 M Below Concrete Collar.
16
709341
5182968
Raise To Surface
Active
2020 Assessment-backfill Raise Located West Of The Surface Breakthroughs. Literature States The Raise Is Timber Capped With Metal Sheeting And Backfilled With Native Fill. The Raise Could Not Be Located However A Rectabgular Flat Area Was Identified A
16
709277
5183007
Stope To Surface
Active
2020 Assessment-crown Pillar Located West Of Open Cut. Stope Was Developed Off The No. 1 Decline And Portions Of It Were Mined To Surface. Stope Width Is Estimated To Be 2m. Literature Review Indicates The Crown Pillar Is Thin, Of Poor Quality And Not
16
709312
5183002
Stope To Surface
Active
2000 Assessment; Steel Bars Are Keeping The Walls Open. The Stope Appears Flat At The Bottom.(as Of Dec 08/2000) 2020 Assessment-stope To Surface That Has Been Timbered And Backfilled. Steep Rock Walls Are Present. Same Hazard As Amis Feature Id 79166.
16
709328
5182990
Tailings - Confined
Active
There Are Two Tailings Area, Referred To As Ta-east And Ta-west Which Are Separated By A Rockfill Berm (identified As Dam 3). Ta-east Is Higher Than Ta-west. Ta-east: Ta-east Is Contained Within A Valley, With A Rockfill Dam At The Downstream End. The
16
709120
5182791
Tailings - Unconfined
Active
East Ta 2002 Tailings Report: The Tailings Area Ta-east Is Contained Within A Valley, With A Rockfill Dam At The Downstream End. The Area Contains No Pond, Except Shallow Water Standing In Depressions, Which Keeps The Tailings Saturated. Drainage Appea
16
709355
5183011
Tailings Dams
Active
2000 Assessment; A Pile Of Rocks Blocks The Tailings Pond From Going Into The Lake. It's Of Two Water Levels.(as Of Dec 08/2000) 2002 Amec Assessment; Dam 1 At Ta-west: Dam 1 Is An Earthfill Dam Consisting Of Sand And Gravel. It Has A Maximum Hei
16
708985
5182692
Tailings Dams
Active
2000 Assessment; A Pile Of Rocks Blocks The Tailings Pond From Going Into The Lake. It's Of Two Water Levels.(as Of Dec 08/2000) 2002 Amec Assessment; Dam 3 Between Ta-east And Ta-west: Dam 3 Is An Internal Rockfill Dam Separating Ta-west And Ta-ea
16
709263
5182905
Tailings Dams
Active
2000 Assessment; A Pile Of Rocks Blocks The Tailings Pond From Going Into The Lake. It's Of Two Water Levels.(as Of Dec 08/2000) 2002 Amec Assessment; Dam 2 At Ta-west: Dam 2 Is Bermed On The Downstream Side. The Lower Berm Supports The Perimeter R
16
709116
5182913

Mineral Deposit Identifier: MDI41K16SW00003


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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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