Energy, Mines and Resources

Minerals

Minto

Minto

General Information

Minto mine, owned by Minto Explorations Ltd. (subsidiary of Capstone Mining Corp. ), is a copper-gold mine located 240 km northwest of Whitehorse. Minto started producing concentrate in July of 2007 and the first truckloads of concentrates were delivered on July 16, 2007 to the Port of Skagway Ore Terminal.

Yukon Energy’s completion of a hydro transmission line from Carmacks to Pelly Crossing, with a spur line to the Minto mine, has allowed the Minto mine and the community of Pelly Crossing to switch from diesel to hydroelectricity, reducing greenhouse gas emissions by up to 24,100 tonnes per year.

This project has been subject to multiple environmental and socio-economic assessments by the Yukon Environmental and Socio-economic Assessment Board’s Mayo Designated Office. An evaluation report was first issued in July 2008 (2008-0117 ) which recommended that the Minto mine be allowed to proceed with milling rate increase to 3,200 tonnes per days. A second evaluation report was issued in March 2010 (2009-0206 ) which recommended that water management and milling rate increase to 3,600 tonnes per day be allowed to proceed. A third evaluation was issued in February 2011 (2010-0198 ) which recommended that phase IV development to mine the Area 2 and Area 118 resources, be allowed to proceed subject to specified mitigative terms and conditions. A fourth evaluation report was issued in April 2014 (2014-0100 ) which recommended that the phase V/VI development, be allowed to proceed subject to specified mitigative terms and conditions.

Although the project has been issued a Quartz Mining License on August 25, 1999 by the Department of Indian Affairs and Northern Development, the official start date is August 1, 2007. The license has been amended in 2006, than 2008, 2010, 2011 and 2014. Apart from the 2006 amendment, each includes mitigation measures outlined in the Yukon Environmental and Socio-economic Assessment Act (YESAA) decision document issued by Government of Yukon.

A Type "A" Water Use Licence for this project has been issue by the Yukon Water Board .

2. Currently Under Review

 Submission Date

   
 Updated Operations Adaptive Management Plan - 2017-01  1,164 KB

 May 2016

 Reclamation and Closure Plan Cover Letter  25 KB

August 2016

 Updated Reclamation and Closure Plan - 2017-01  60,402 KB

 

 Appendix A1 - Minto Mine Site Assessment  4,750 KB  
 Appendix A2 - Wetland Treatment Research Program - Pilot Scale  4,239 KB  
 Appendix A3 - Minto Mine Constructed Wetland Treatment Research Program - Demonstration CWTS  7,519 KB  
 Appendix A4 - Minto Mine Constructed Wetland Treatment Research Program - Demonstration Scale 2015 Update  14,324 KB  
 Appendix B - SFN Stakeholder & Regulator Engagement Table  445 KB  
 Appendix C - Memo - Re-evaluation of Candidate Passive Treatment Technologies for Minto Mine Closure  437 KB  
 Appendix D1 - 2013 FMEA Risk Register  95 KB  
 Appendix D2 - Minto Mine Closure - Failure Modes and Effects Assessment 2014 Workshop Report  508 KB  
 Appendix E1 - Scoping Level Cover Assessment for Minto Closure Covers  2,492 KB  
 Appendix E2 - Memo - Minto Mine Closure Covers: Results of Numerical Modeling to Bracket Percolation Predictions  1,917 KB  
 Appendix E3 - Updated Closure Cover Design for the Minto Mine 2016 Reclamation and Closure Plan  53,361 KB  
 Appendix E4 - Closure Landform Design and Reclamation Landform Units for the Minto Mine  34,269 KB  

 Appendix F - Background Water Quality of Lower Minto Creek for Application in the Derivation of Post-Closure Water Quality Objectives  8,833 KB

 
 Appendix G1a - Preliminary Design Report for Treatment Wetland  2,400 KB  
 Appendix G1b - Minto Creek Constructed Wetland: Physical Infrastructure Preliminary Design  2,331 KB  
 Appendix G2 - Closure Water Conveyance System Design Update Report, Minto Mine  12,621 KB  
 Appendix H - Minto Climate Baseline Report  9,661 KB  
 Appendix I1 - Memo - Minto Copper Project - Surface Water Hydrology Conditions – Final  468 KB  
 Appendix I2 - Surface Water Hydrology Baseline Conditions  2,134 KB  
 Appendix I3 - Memo - Minto and McGinty Creek 2014 Hydrology Update  2,259 KB  
 Appendix I4 - Memo - Minto and McGinty Creek 2015 Surface Hydrology Update  1,590 KB  
 Appendix J1 - Minto Creek Water Quality Characterization January 2005 – December 2015  19,659 KB  
 Appendix J2 - McGinty Creek Water Quality Characterization May 2009 – December 2015  6,054 KB  
 Appendix K1 - Minto Mine Phase V/VI Expansion: Hydrogeological Characterization Report  69,483 KB  
 Appendix K2 - Memo - Minto Mine: Groundwater Baseline Conditions  18,242 KB  
 Appendix K3 - Minto 2015 Groundwater Model Update  12,459 KB  
 Appendix L - Summary of Baseline Wildlife Surveys Conducted 1994 to 2012  2,876  
 Appendix M - Aquatic Resources Baseline Report  16,670 KB  
 Appendix N - Minto Ecosystems and Vegetation Baseline Report  22,915 KB  
 Appendix O - Water and Load Balance Model Report 2016  22,665 KB  
 Appendix P1 - Minto Mine - Operations Adaptive Management Plan  1,124 KB  
 Updated Appendix P2 - Closure Adaptive Management Plan - 2017 - 01  1489 KB  
 Appendix Q1 - Minto Mine Closure Cost Estimates – RCP Revision 2016-01  7,942 KB  
   
   

 

1. Approved License

1.1. Approval Date
1.1.1 QML-0001 PDF Image 829.28 KB December 2014
1.1.2 Schedule A - Listed Mineral CLaims and Leases PDF Image 278.00 KB December 2014
1.1.3 Schedule B - Plans to be Submitted for Approval as Approved Plans PDF Image 52.92 KB December 2014
1.1.4 Schedule C - Approved Plans and Authorized Activities PDF Image 1249.81 KB August 2017
1.1.5 Schedule D - Annual Reporting Requirements PDF Image 55.56 KB December 2014
 
1.2. Amendment Approval Date
1.2.1 Approval to Extension of Submission Date for the Reclamation and Closure Plan PDF Image 31.17 KB November 2015
1.2.2 Rationale for Issuance of Amendment to QML-0001 for the Area 2 Stage 3 Open Pit PDF Image 218.74 KB December 2016
 
 
1.3. Correspondence Date
1.3.1 QML-0001 - Plan Requirement PDF Image 91.10 KB December 2014
 

2. Development & Operational Plans

2.1. Mine Development and Operational Plans
2.1.1. Plans Submission Date
a) Pre-Feasibility Geotechnical Evaluation - Phase IV PDF Image 18907.28 KB December 2009
b) General Site Plan Minto Mine Phase IV Expansion - Revision 1 PDF Image 1006.75 KB April 2011
c) General Site Plan - Stage II PDF Image 1326.88 KB September 2011
d) Mine Development and Operations Plan - V1 PDF Image 3398.09 KB February 2012
e) Submission of Camp Expansion and Office Space Designs PDF Image 2769.41 KB August 2012
f) Underground Mine Development and Operations Plan PDF Image 8494.33 KB April 2014
g) Ground Control Plan - Underground Operations PDF Image 3372.79 KB May 2013
h) Area 2 Pit Wall and Crown Pillar Monitoring PDF Image 3493.47 KB January 2014
i) M-Zone Portal Ground Support Design and General Surface Work Area Rockfall Protection Plan PDF Image 1405.88 KB January 2014
j) Area 118 Ventilation Conceptual Design PDF Image 713.06 KB August 2014
k) Area 118 Large-Scale 3DEC Analysis PDF Image 1840.15 KB August 2014
l) Area 118 FLAC3D Analysis of the Longhole Base Case Option PDF Image 1938.90 KB August 2014
m) Area 118 3DEC/DFN Analysis PDF Image 11044.47 KB August 2014
o) Mine Development and Operations Plan PDF Image 3181.88 KB June 2014
p) Underground Mine Development and Operations Plan PDF Image 8278.69 KB June 2014
q) Ground Control Plan - Underground Operations PDF Image 3556.62 KB September 2015
r) Underground Mine Development and Operations Plan PDF Image 6199.09 KB March 2016
s) Ground Control Plan - Underground Operations PDF Image 2573.74 KB December 2015
t) Area 2 Stage 3 Pit - Mine Development and Operations Plan 2016-01 PDF Image 1851.60 KB October 2016
u) Main Pit Dump Stability Analysis Update PDF Image 603.64 KB February 2017
v) Underground Mine Development and Operations Plan 2017-01 PDF Image 3901.78 KB April 2017
w) Mine Development and Operations Plan - Area 2 Stage 3 Pit Design Change 2017-01 PDF Image 1363.90 KB July 2017
 
2.1.2. Approvals Approval Date
a) Approval of Mine Development and Operations Plans PDF Image 30.45 KB May 2016
b) Approval of Area 2 Stage 3 Pit - Mine Development and Operations Plan PDF Image 426.77 KB December 2016
c) Approval of Underground Mine Development and Operations Plan 2017-01 PDF Image 339.89 KB July 2017
d) Approval of Mine Development and Operations Plans PDF Image 1350.46 KB August 2017
 
 
2.2 Mill Construction and Operation
2.2.1. Plans Submission Date
2.2.1 Minto Mine, Mill Operations Plan PDF Image 2967.70 KB June 2014
 
2.2.2. Approvals Approval Date
 
2.3 Waste Rock Storage Facilities
2.3.1. Plans Submission Date
a) Waste Rock and Overburden Management Plan PDF Image 75459 KB June 2014
b) Waste Rock and Overburden Management Plan - Phase IV Development PDF Image 3930.53 KB September 2011
c) Mill Valley Fill Extension Stage 2 PDF Image 5852.66 KB September 2015
d) Waste Rock and Overburden Management Plan - Phase V/VI PDF Image 3329.26 KB December 2014
 
2.3.2. Approvals Approval Date
 
2.4 Tailings Storage Facilities
2.4.1. Plans Submission Date
a) Minto Mine Tailings Management Plan 2017-1 PDF Image 1797.51 KB February 2017
b) Main Pit Dam Review of Preliminary Design PDF Image 60.04 KB February 2015
 
2.4.2. Approvals Approval Date
a) Approval of Tailings Management Plan PDF Image 182.69 KB September 2012
 
2.5 Road Construction
2.5.1. Plans Submission Date
a) QML-0001 - Extension of Airstrip PDF Image 756.95 KB September 2007
b) Minto North Access Design PDF Image 4746.61 KB September 2014
 
2.5.2. Approvals Approval Date
a) Approval Extension of Airstrip PDF Image 436.61 KB September 2007
 
2.6 Emergency Response & Health and Safety
2.6.1. Plans Submission Date
2.6.1 Emergency Response Plan PDF Image 2497.61 KB April 2015
 
2.6.2. Approvals Approval Date
 

3. Environmental Protection Plans and Reports

3.1 Monitoring and Surveillance Plan  
3.1.1. Plan Submission Date
a) Site Characterization Plan PDF Image 4475.44 KB May 2014
b) Site Characterization Plan - Appendices PDF Image 183684 KB May 2014
c) Vegetation Metal Uptake Monitoring Plan PDF Image 14784.40 KB October 2015
d) Environmental Monitoring, Surveillance and Reporting Plan - 2016-02 PDF Image 35385.0 KB July 2016
e) Operations Adaptive Management Plan PDF Image 1027.80 KB February 2017
f) Physical Monitoring Plan - Revision 2016-1 PDF Image 2635.00 KB December 2016
g) Groundwater Monitoring Plan Supplementary Letter PDF Image 1503.29 KB February 2017
 
3.1.2. Approval Approval Date
a) Approval of Operational and Environmental Plans PDF Image 255.96 KB March 2016
b) Approval of Operations Adaptive Management Plan 2017-01 PDF Image KB March 2017
 
3.2 Environmental Protection and Management  
3.2.1. Plans Submission Date
a) Spill Contingency Plan PDF Image 3216.92 KB March 2014
b) Heritage Resource Protection Plan PDF Image 2558.96 KB April 2014
c) Sediment and Erosion Control Plan PDF Image 429.25 KB April 2014
d) Waste Management Plan PDF Image 4484.82 KB June 2014
e) Explosives Management Plan PDF Image 1467.86 KB June 2011
f) Wildlife Protection Plan PDF Image 8279.16 KB April 2014
 
3.2.2. Approvals Approval Date
3.3 Reporting  
  Reports Submission Date
a) Minto Environmental Audit PDF Image 1371.47 KB October 2016
 

4. Reclamation & Closure Plans

4.1 Plans Submission Date
4.1.1 Minto Mine, Phase V/VI Reclamation and Closure Plan PDF Image 62939 KB August 2014
4.1.2 Drawings PDF Image 11341.95 KB August 2014
4.1.3 Appendices PDF Image 199802 KB August 2014
4.2 Approval Approval Date
 

5. Financial Security

    Date
5.1 Closure Cost Estimate Update for Minto Mine PDF Image 251.57 KB November 2012
5.2 Financial Security for the Minto Mine Pursuant to QML-0001 PDF Image 42.38 KB November 2012
5.3 Review of Capstone’s Reclamation and Closure Plan Closure Costing Spreadsheet Version 4.1 for the Minto Mine PDF Image 971.90 KB February 2014
5.4 Reclamation and Closure Plan and Determination of Financial Security PDF Image 2813.71 KB March 2014
5.5 Review of Capstone’s Phase V/VI Reclamation and Closure Plan Revision 5.1 PDF Image 824.33 KB January 2015
5.6 Determination of Financial Security PDF Image 841.48 KB January 2015

6. Annual Reporting

6.1. Annual Reports Submission Date
6.1.1 2010 Annual Report PDF Image 45288.654 KB March 2011
6.1.2 2011 Annual Report PDF Image 43512.562 KB March 2012
6.1.3 2012 Annual Report PDF Image 22407.750 KB March 2013
6.1.4 2013 Annual Report PDF Image 30633.0 KB March 2014
6.1.5 2014 Annual Report PDF Image 57516.0 KB March 2015
6.1.6 2015 Annual Report PDF Image 123999 KB April 2016
6.1.7 2016 Annual Report PDF Image 8449.09 KB March 2017
6.1.7.1 2016 Annual Report Appendices PDF Image 163277.502 KB March 2017
6.2. Annual Inspection Reports  
6.2.1 2011 Annual Physical Inspection Report PDF Image 31007.455 KB September 2011
6.2.2 2012 Annual Physical Inspection Report PDF Image 26771.356 KB November 2012
6.2.3 2013 Annual Physical Inspection Report PDF Image 27740.65 KB July 2013
6.2.4 2014 Annual Physical Inspection Report PDF Image 9691.37 KB August 2014
6.2.5 2014 Geotechnical Annual Review PDF Image 10529.08 KB November 2014
6.2.6 2015 Annual Geotechnical Review PDF Image 12679.85 KB August 2015
6.2.7 2016 Annual Geotechnical Review PDF Image 15750.82 KB November 2016
6.2.8 2017 Annual Geotechnical Review PDF Image 25825.18 KB August 2017
6.2.9 2017 Annual Underground Geotechnical Review PDF Image 583.04 KB August 2017

7. Technical Committee

8. Socio-economic

    Date
8.1 Minto Mine Socio-Economic Monitoring Program Framework PDF Image 645.81 KB July 2014
8.2 Socio-economic Monitoring Program: Minto Mine - 2014 Annual Report Executive Summary PDF Image 271.08 KB November 2016
8.3 Socio-economic Monitoring Program: Minto Mine - 2014 Annual Report PDF Image 2561.04 KB November 2016