TETRA TECH Scale: 1: (metres) REFERENCE DRAWINGS ENGINEERING

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1 V:\C Sabina Mine\Phase\Design\George\1540' Option\C George Airstrip 1540'-C5.0 - OBSTACLE LIMITATION SURFACE.dwg [C5.0] September 18, :04:35 am BY: domingo, mario) Scale: 1: metres) TETRA TECH DWG. No. REV. 00 SUB-CONSULTANTS) : PERMIT STAMP SEAL DESIGNED BY: E. HURRELL AUTHORIZED BY: J. WILLMS 00 NO. REFERENCE DRAWINGS DESCRIPTION NO ISSUED FOR REVIEW DATE DESCRIPTION REVISIONS/ISSUE MD AE PREPARED REVIEW DRAFTING EH JW DESIGN AUTHORIZE ENGINEERING PREPARED BY: M. DOMINGO DATE: REVIEWED BY: PROJECT NAME: SABINA-BACK RIVER PROJECT PFS A. EVANS NUNAVUT SCALE: DRAWING DESCRIPTION: AS NOTED GEORGE AIRSTRIP 1540' OBSTACLE LIMITATION SURFACE TETRA TECH DRAWING NO: C5.0 REV: 00

2 P.V.I. STA: ELEV: P.V.I. STA: ELEV: % 1.500% P.V.I. STA: ELEV: % BVCS= BVCE= PVI STA= PVI ELEV= R= LVC=68.99 EVCS= EVCE= % P.V.I. STA: ELEV: P.V.I. STA: ELEV: % P.V.I. STA: ELEV: T T % % 5.000% Scale: 1: metres) V:\C Sabina Mine\Phase\Design\George\1540' Option\C George Airstrip 1540'-C6.0 - PLAN & PROFILE-SIGNS&MARKINGS.dwg [C6.0] September 18, :03:09 am BY: domingo, mario) NO. REFERENCE DRAWINGS DESCRIPTION ISSUED FOR REVIEW MD AE EH JW NO. DATE REVISIONS/ISSUE DESCRIPTION PREPARED REVIEW DESIGN AUTHORIZE DRAFTING ENGINEERING SUB-CONSULTANTS) : PERMIT STAMP SEAL DESIGNED BY: AUTHORIZED BY: PREPARED BY: REVIEWED BY: SCALE: E. HURRELL M. DOMINGO A. EVANS DATE: J. WILLMS AS NOTED TETRA TECH TETRA TECH DWG. No. - PROJECT NAME: SABINA-BACK RIVER PROJECT PFS NUNAVUT DRAWING DESCRIPTION: GEORGE AIRSTRIP 1540' PLAN & PROFILE AND SIGNS & MARKERS DRAWING NO: 0 10 Scale: 1: 200 metres) C REV. REV: 00

3 V:\C Sabina Mine\Phase\Design\George\1540' Option\C George Airstrip 1540'-C7.0-TYPICAL SECTIONS.dwg [C7.0] September 18, :01:03 am BY: domingo, mario) NO. REFERENCE DRAWINGS DESCRIPTION ISSUED FOR REVIEW MD JW EH AE NO. DATE DESCRIPTION PREPARED REVIEW DESIGN AUTHORIZE REVISIONS/ISSUE DRAFTING ENGINEERING SUB-CONSULTANTS) : PERMIT STAMP SEAL DESIGNED BY: PREPARED BY: REVIEWED BY: E. HURRELL M. DOMINGO J. WILLMS AUTHORIZED BY: DATE: SCALE: A. EVANS AS NOTED TETRA TECH TETRA TECH DWG. No. - PROJECT NAME: SABINA-BACK RIVER PROJECT PFS NUNAVUT DRAWING DESCRIPTION: GEORGE AIRSTRIP 1540' TYPICAL SECTIONS DRAWING NO: C REV. REV: 00

4 BACK RIVER PROJECT Final Environmental Impact Statement Supporting Volume 6: Freshwater Environment Appendix V6-3F 2014 Bathymetric Survey Report

5 Sabina Gold & Silver Corp. BACK RIVER PROJECT 2014 Bathymetric Survey Data Report Rescan Environmental Services Ltd., an ERM company ERM Rescan Building, 15th Floor West Hastings Street Vancouver, BC Canada V6E 2J3 Tel: 604) Fax: 604) September 2014

6 BACK RIVER PROJECT 2014 BATHYMETRIC SURVEY DATA REPORT September 2014 Project # Citation: Rescan Back River Project: 2014 Bathymetric Survey Data Report. Prepared for Sabina Gold & Silver Corp. by Rescan Environmental Services Ltd., an ERM company. Prepared for: Sabina Gold & Silver Corp. Prepared by: Rescan Environmental Services Ltd., an ERM company Vancouver, British Columbia

7 Acknowledgements BACK RIVER PROJECT 2014 Bathymetric Survey Data Report

8 Acknowledgements This report was prepared for Sabina Gold & Silver Corp. Sabina) by Rescan Environmental Services Ltd., an ERM company Rescan). The 2014 bathymetric survey field work was conducted by Luke Powell M.Sc.) and April Hayward Ph.D.). Rescan staff were assisted in the field by Kokiak Peetooloot assistant provided by Sabina). The report was prepared by Luke Powell and was reviewed by Pieter van Leuzen M.Sc.) and Deborah Muggli Ph.D., M.Sc., R.P.Bio.). The Back River Project was managed by Deborah Muggli, with project coordination assistance from Korina Houghton B.Sc.). SABINA GOLD & SILVER CORP. i

9 Table of Contents BACK RIVER PROJECT 2014 Bathymetric Survey Data Report

10 BACK RIVER PROJECT 2014 BATHYMETRIC SURVEY DATA REPORT Table of Contents Acknowledgements... i Table of Contents... iii List of Figures... iii List of Tables... iv List of Plates... iv Glossary and Abbreviations... v 1. Introduction Methods Data Collection Data Analysis Results List of Figures FIGURE PAGE Figure 1-1. Back River Project Location Figure Bathymetric Survey s Figure 3-1. Bathymetry of Lower Long, Back River Project, Figure 3-2. Bathymetry of Fold, Back River Project, Figure 3-3. Bathymetry of MLA Pond S1, Back River Project, Figure 3-4. Bathymetry of MLA Pond S2, Back River Project, Figure 3-5. Bathymetry of 01, Back River Project, Figure 3-6. Bathymetry of 02, Back River Project, Figure 3-7. Bathymetry of 03, Back River Project, Figure 3-8. Bathymetry of 05, Back River Project, Figure 3-9. Bathymetry of 06, Back River Project, SABINA GOLD & SILVER CORP. iii

11 2014 BATHYMETRIC SURVEY DATA REPORT List of Tables TABLE PAGE Table 3-1. Morphometry of s Surveyed in List of Plates PLATE PAGE Plate Typical setup of transducer iv RESCAN ENVIRONMENTAL SERVICES LTD., AN ERM COMPANY PROJ# REV A.1 SEPTEMBER 2014

12 Glossary and Abbreviations BACK RIVER PROJECT 2014 Bathymetric Survey Data Report

13 Glossary and Abbreviations Terminology used in this document is defined where it is first used. The following list will assist readers who may choose to review only portions of the document. DGPS MLA Differential Global Positioning System Marine Laydown Area SABINA GOLD & SILVER CORP. v

14 1. Introduction BACK RIVER PROJECT 2014 Bathymetric Survey Data Report

15 1. Introduction The Back River Project the Project) is a proposed gold project owned by Sabina Gold & Silver Corp. Sabina) located in the West Kitikmeot region of Nunavut Figure 1-1). This report presents the results of the bathymetric surveys that were conducted on site in During 2014, the following lakes were surveyed via boat methods: o Lower Long George Property Area); o Fold George Property Area); o lakes WR01, WR02, WR03, WR05, and WR06 located along the winter road route between the Goose Property Area and the Marine Laydown Area); o MLA Pond S1 west of the Marine Laydown Area); and o MLA Pond S2 west of the Marine Laydown Area). Chapter 2 of this report presents the methods used for the bathymetric survey work and Chapter 3 presents all of the bathymetric maps along with a summary of the results. SABINA GOLD & SILVER CORP. 1-1

16 PROJECT # GIS # BAC August '0"W 110 0'0"W 105 0'0"W Killinik Victoria Island) Ekaluktutiak. Cambridge Bay) Kilingoyak Kent Peninsula) Queen Maud Gulf 68 0'0"N. Kugluktuk Coronation Gulf Kiligiktokmik Bathurst Inlet) Omingmaktok Bay Chimo). 68 0'0"N Arctic Circle Kingaok Bathurst Inlet). ^_ Marine Laydown Area 66 0'0"N Northwest Territories Nunavut George Property Area #* Western River) Kilokgiktok Back River Project 66 0'0"N Contwoyto #* Goose Property Area Hannigayok ) Back River 64 0'0"N Aylmer 64 0'0"N Yellowknife. Great Slave. Community/Settlement #* Existing Exploration Camp ^_ Marine Laydown Area 1:3,500, Kilometres Projection: NTKP Lambert Conformal Conic 115 0'0"W 110 0'0"W 105 0'0"W Back River Project Location Figure 1-1

17 2. Methods BACK RIVER PROJECT 2014 Bathymetric Survey Data Report

18 2. Methods 2.1 DATA COLLECTION Bathymetric maps display the topography of lake bottoms in a similar manner to terrestrial topographic contour maps. Bathymetric maps are based on systematic depth soundings that are taken from a boat across the water body. These maps are used to calculate surface area and water volumes, as well as determine maximum depths and the relative size of the littoral zone. The locations of all of the waterbodies surveyed are presented in Figure Bathymetric surveys of Lower Long, Fold, s 01, 02, 03, 05 and 06, and MLA ponds S1 and S2 were conducted between July 3 and 17, Each survey was conducted using a BioSonics MX Aquatic Habitat Echosounder. The unit has an integrated differential global positioning system DGPS) connected to a single-frequency khz transducer which records water depths using BioSonics proprietary software Visual Acquisition. The transducer was attached to a steel rod mounted to the gunnel of a 12-foot aluminum boat, and placed underwater at a depth of between 15 and 25 cm Plate 2.1-1). Water temperatures were taken to calculate the speed of sound and absorption coefficient in order to calibrate the transducer. The Visual Acquisition software automatically corrected all depth measurements for transducer depth and water properties. Plate Typical setup of transducer. SABINA GOLD & SILVER CORP. 2-1

19 2014 BATHYMETRIC SURVEY DATA REPORT The surveys were carried out by navigating a course of regularly spaced transects across the width of each lake, along with a longitudinal transect through the long axis of the lake. Spacing between the transects was determined based on the desired level of detail of the survey; transects placed closer together would produce a more detailed survey. A hand-held Garmin GPSMap 60cx, pre-loaded with the transect tracks, was used to maintain the correct course with the boat. In areas that were too shallow for reliable depth readings using the echosounder, personnel waded through the water using a stadia rod and the hand-held GPS to collect lake depths and associated GPS coordinates. For Lower Long and Fold, the elevation of the water surface was surveyed on the same day the bathymetric survey was completed using established elevation benchmarks. 2.2 DATA ANALYSIS The shoreline of each lake was digitized from high resolution satellite imagery. The digitized shorelines were compared to points recorded with the hand-held GPS taken at the shoreline to ensure the digitized shorelines were accurate. The digitized shorelines, sounding depth points, and any point manually recorded in shallow areas were then used to create a triangular irregular network TIN). The TIN was converted to a raster i.e., grid) with a cell size ranging from 1 to 5 m, depending on the spacing of the transects i.e., the larger the transect spacing, the larger the cell size). The values from the raster were then interpolated back into points which were compared to the recorded depths. Readings with a variation greater than 0.5 m were individually assessed against other nearby points to determine if it was likely an erroneous point or simply in an area of high variability. Sounding data that seemed likely to be in error was removed from the dataset, and the TIN was recreated using the corrected data, and the points were reassessed against the generalized average. A grid of fill points was then created and values from the corrected TIN transferred back to the point grid. The corrected sounding data, densified TIN grid points and the shoreline were used as inputs in an interpolation to a raster dataset that was then used to produce depth contours. 2-2 RESCAN ENVIRONMENTAL SERVICES LTD., AN ERM COMPANY PROJ# REV A.1 SEPTEMBER 2014

20 GIS # BAC September ± Kiligiktokmik Bathurst Inlet) Kingaok. Bathurst Inlet) MLA Summer 2 _ ^ Ekalokhiokvik Marine Laydown Area Marine Laydown Area BIPR Winter Road Connector MLA Summer 1 _ ^ Kilogiktok Bathurst Inlet, Southern Arm) Main Map # * MLA Summer 2 George Property Area # * Tibbitt to Contwoyto Goose Property Area TCWR Connector 1:70,000 1:3,500,000 UTM Zone13 Kilogiktok Bathurst Inlet, Southern Arm) UTM Zone12 MLA Summer PROJECT # Nunav ut Northw est Te rritorie s ok Kil to k gi k este W Tahikafalok Bathurst ) r nr r) ive UTM Zone13 UTM Zone12 1:70, Lower Long Lytle Fold Lower Long # * Bathymetric Survey _ ^ Marine Laydown Area 05 # * # * George Bob 1:70, Fold Existing Exploration Camp TCWR Winter Road Connector Tikigak George Property Area 03, George Tie-In Option :70,000, George Tie-In Option 2 03 BIPR Connector Haul and Access Road Proposed Infrastructure Federal Watershed Delineation 1:70,000 Bathurst Inlet - Burnside River Queen Maud Gulf - Ellice River 0 1:375,000 5 Goose Property Area Tahikafalok Nahik Propeller ) Upper Back River Kilometres Potential Development Area PDA) 1:70,000 # * Projection: NAD 1983 UTM Zone 13N Department of Natural Resources, Canada. All rights reserved Figure Figure Bathymetric Survey s

21 3. Results BACK RIVER PROJECT 2014 Bathymetric Survey Data Report

22 3. Results Bathymetric maps of each lake are presented in Figures 3-1 to 3-9. A summary of the physical properties of each lake is presented in Table 3-1. Table 3-1. Morphometry of s Surveyed in 2014 Waterbody Max Depth m) Volume m 3 ) Surface Area m 2 ) Shoreline Length m) Lower Long ,770,184 1,962,477 13,766 Fold ,970, ,881 8,080 MLA Pond S , ,671 2,863 MLA Pond S , ,045 4,165 s WR , ,030 3,851 WR , ,570 5,270 WR ,167,398 2,335,544 15,281 WR ,482, ,945 7,947 WR ,557 59,903 1,307 SABINA GOLD & SILVER CORP. 3-1

23 GIS # BAC i September 03, ± Morphom etry Upper Long Surf ace Area m2) Maximum Depth m) Volume m3) -5 Low er Long 1,962, ,770,184 Shoreline Length m) 13, PROJECT # LCP North Pit Waste Rock Storage Area C Lower Long Explosives Storage m Isobath Interval 1 m Isobath Interval -10, George Tie-In Option 2 BIPR Connector -10 George Haul and Access Road Resource Pit -5 Bob Waste Rock Storage Area Explosives Storage Lytle 1:17,000 0 Locale 1 Pit Potential Development Area PDA) 0-1 Fold Stockpile Location 500 Stockpile George) Metres Projection: NAD 1983 UTM Zone 13N Figure 3-1 Bathymetry of Lower Long, Back River Project, 2014