Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52H04NE00003

Record: MDI52H04NE00003

General

Mineral Record Identification
Record Name(s) Lac des Iles Mine - 1987, Roby Zone - 1987
Related Record Type Compound
Related Record(s)
Record Status Producing Mine
Date Created 1987-Aug-13
Date Last Modified 2023-Apr-13
Created By
Revised By

Commodities

Primary Commodities: Palladium

Secondary Commodities: Platinum, Copper, Nickel, Gold, Cobalt



Location

Township or Area: Lac Des Iles Area

Latitude: 49° 10' 16.85"    Longitude: -89° 36' 56.29"

UTM Zone: 16    Easting: 309352.53   Northing: 5449797.78    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 52H04NE

Point Location Description: Large operating open pit and underground mine

Location Method: Field Visit with GPS

Access Description: The LAC DES ILES COMPLEX is accessible from the city of Thunder Bay by travelling 94 km north along HWY 527 and proceeding west 16 km along a gravel roadway.



Exploration History

PGM mineralization was discovered at Lac des Iles by prospectors in 1963. Gunnex Limited acquired the property in 1963 and subsequently optioned it to Anaconda American Brass. PGM's and base metals were discovered in eight (8) zones between 1963 and 1966. Boston Bay Mines acquired the property in 1974 and discovered the Roby Zone. Boston Bay optioned the property to Texasgulf Canada in 1975 who delineated the Roby Zone which is currently being mined. Madeleine Mines Ltd. acquired fifty per cent (50%) ownership of the leased claims from The Sheridan Platinum Group in 1986 and continued to delineate the Roby Zone. Construction of a concentrator was completed and production commenced in 1990. Production was halted by the Ministry of Environment because proper operating permits had not been obtained. In 1991, Kaiser-Francis Oil Company acquired the controlling share block of Madeleine Mines Ltd. and effectively took over the management of the Company. Lac des Iles Mines Ltd. was incorporated as a subsidiary of Madeleine Mines in 1991 and all assets, including the mining claims, were rolled over into LDI. LDI's management was successful in obtaining the necessary permits and commenced commercial production in December 1993. This brought the property to a 3,000 ton per day operation. In 1994, LDI gained one hundred percent (100%) ownership of the leased claims. Madeleine Mines Ltd. changed its name to North American Palladium Ltd. (NAP) in June 1993 by Amendment of Articles. 2001: new mill facility was commissioned with a nominal design capacity of 15,000 tonnes per day. The Offset zone was discovered in 2001. 2009: Cowboy and Outlaw Zones discovered during infill drilling on the Offset Zone. 2010: NAP - 25 trenches totaling a length of 2595 m, 242 DDH totaling 82131 m. 2011: NAP - 15 Trenches totaling a length of 1500 m, 234 DDH totaling 79991 m. New underground zone (Sheriff) was discovered in 2012. 2013: Construction of the new shaft into the Offset Zone was completed. NAP drilled 212 DDH totalling 54,532 m. 2014: NAP drilled 66 DDH totalling 36,309 m. 2019: NAP drilled 65 surface DDH totalling 36,300 m. Impala Platinum acquired the property in October. 2020: Impala Canada drilled 12 surface DDH totalling 7,791 m.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.1972 52H04NE0024 52H04NE0024
63.1711 52H04NE0027 52H04NE0027
W9640.00597 52H04NE0036 52H04NE0036
13 52H04NE0034 52H04NE0034
12 52H04NE0033 52H04NE0033
22 52H04NE9194 52H04NE9194
14 52H04NE0031 52H04NE0031
2.20384 52H04NE2005 52H04NE2005
2.24814 52H04NE2020 52H04NE2020
2.24265 52H04NE2016 52H04NE2016
2.18271 52H04NE2001 52H04NE2001
2.20022 52H04NE2003 52H04NE2003
15 52H04NE0029 52H04NE0029
2.24642 52H04NE2019 52H04NE2019
2.15334 52H04NE0013 52H04NE0013
2.10946 52H04SW8189 52H04SW8189
2.44498 20000008036 20000008036
63.5408 52H05SW0002 52H05SW0002
2.44498 20000005541 20000005541
OM92-113 52H04NE0015 52H04NE0015
2.24442 52H04NE2014 52H04NE2014
2.20191 52H04NE2004 52H04NE2004
63.5221 52H04NE0004 52H04NE0004
2.24170 52H04NE2015 52H04NE2015
2.22743 52H04NE2018 52H04NE2018
2.23510 52H04NE2012 52H04NE2012
2.24424 52H04NE2017 52H04NE2017
2.20627 52H04NE2006 52H04NE2006

Geology

Province: Superior

Subprovince: Wabigoon

Geological Age: Neoarchean   Geochronological Age: 2689 MA   Geochron. Age Ref.: STONE ET AL., 2003 OFR 6120



Geology Comments

Dec 07, 2005 (B Schnieders) - The Lac des Iles complex is the largest and economically most important member of the Lac des Iles intrusive suite. The Lac des Iles complex comprises 2 intrusions including the Northern Ultramafic intrusion and the gabbroic Mine Block intrusion. The Lac des Iles complex has been intruded by biotite tonalite and tonalite gneiss and lies at the north end of the Shelby Lake fault (Stone et al., 2003). The gabbroic Mine Block intrusion is roughly elliptical in plan with a long axis extending northeasterly over a distance of 4 km. It occurs directly south of the Northern Ultramafic intrusion. At the Roby Zone, Lavigne and Michaud (2001) identified 3 types of ore including breccia, high grade and North Roby varieties of which the breccia ore is volumetrically dominant, The heterolithic gabbro breccia, which hosts the breccia ore contains fragments representative of most lithologies in the Mine Block intrusion. Platinum group elelent (PGE) mineralization is confined mainly to the the gabbro matrix (Hinchey, Hattori and Lavigne, 2003) and includes kotulskite, merenskyite, braggite, and vysotskite associated with fine-grained disseminated pyrrhotite, pyrite, pentlandite and chalcopyrite. The sulphide minerals comprise up to 5% of the breccia matrix. High-grade ore occurs in a strongly sheared and altered unit of pyroxenite and melanogabbro (up to 25 m wide) in the east central portion of the Roby Zone. Pyroxene grains within the host rock are altered to amphibole and chlorite. The altered unit contains up to 3% disseminated sulphide grains. Lavigne and Michaud (2001) noted a strong association of PGE mineralization with brecciated rock and varitextured gabbro within which magmatic minerals are variously altered to hydrous silicates. These authors concluded that the mineralization resulted from forcible introduction of a PGE-and sulphide-rich magma into the partially crystallized magma chamber of the Mine Block Intrusion (Stone et al, 2003).


Dec 07, 2005 (Q Unknown) - Platinum group element mineralization is associated with pyroxenite, gabbronorite, and gabbro in areas that have been brecciated and invaded by pegmatitic gabbro typically containing from 0 to 5 % pyrrhotite, chalcopyrite, pyrite and pentlandite. The Roby Zone contains two distinct zones of mineralization separated by a zone of sheared and mineralized pyroxenite that trends north-northwest. North of the shear zone the mineralization is contained within coarse grain gabbro and gabbronorite that strikes northeast and dips to the east-southeast variably at 60 to 75 degrees. This mineralization tends to be sulphide-poor. South of the shear zone the mineralization is contained within a heterolithic gabbro breccia with abundant pegmatitic gabbro. This zone is in sharp contact with the pyroxenite, and the ore grades diminish gradually to the west. The zone is shaped like a sideways funnel facing the pyroxenite to the east. This zone typically 2% sulphides. The pyroxenite is well mineralized and becomes higher grade ore in those areas of more intense shearing. The hanging wall to this zone dips steeply to the east and is well defined by the barren leucogabbro wallrock. The pyroxenite is well mineralized and becomes higher grade ore in those areas of more intense shearing. The hanging wall to this zone dips steeply to the east and is well defined by the barren leucogabbro wallrock.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Ultramafic-Unsubdivided 1 Host
Gabbro 1 Is

Lithology Comments

Dec 07, 2005 (Q Unknown) - The ultramafic intrusion is composed of two coalescing centres, each of which consists of several intrusive phases. The centres are defined by the distribution of lithologies and attitudes of layering. The lithologic sequence of early peridotitc rocks, followed by clinopyroxene, and finally by late websterite and gabbronorite, suggests that the ultramafic rocks folow a crystallization sequence of olivine, oliving-clinopyroxene, clinopyroxene, clinopyroxene-orthopyroxene, and finally clinopyroxene-orthopyroxene-plagioclase.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1ChalcopyriteEconomicOre
2GoldEconomicOre
3PentlanditeEconomicOre
4PyriteEconomicOre
5PyrrhotiteEconomicOre

Mineralization Comments

Apr 10, 2015 (Therese Pettigrew) - Notable intersections from the 2013 drill program include the following: Offset Zone: DDH 13-704: 3.62 g/t Pd over 6 m; DDH 13-707: 4.58 g/t Pd over 8 m; DDH 13-717: 4.34 g/t Pd over 50 m; DDH 13-804: 7.68 g/t Pd over 36 m; DDH 13-813: 6.13 g/t Pd over 41 m; DDH 13-844: 5.23 g/t Pd over 42 m. Roby Zone: DDH 13-218: 2.44 g/t Pd over 16.3 m; DDH 13-226: 2.13 g/t Pd over 17 m; DDH 13-228: 9.20 g/t Pd over 4 m; DDH 13-236: 16.35 g/t Pd over 3 m; DDH 13-240: 1.79 g/t Pd over 24 m. North Sheriff Zone: DDH 13-118: 10.15 g/t Pd over a 16 m, including 23.6 g/t over 4.7 m; DDH 13-119: 2.06 g/t Pd over 12 m (OFR6293). Notable intersections from the 2014 drill program include the following: Upper Offset Zone: DDH 14-776: 5.2 g/t Pd over 20.3 m; DDH 14-903: 6.2 g/t Pd over 17.7 m; DDH 14-908: 7.2 g/t Pd over 11.0 m. Lower Offset Zone: DDH 14-904: 5.86 g/t over 9.0 m; DDH 14-909: 4.7 g/t over 49.7 m; DDH 14-912: 4.9 g/t over 50.0 m; DDH 14-916: 7.9 g/t over 20.0 m; DDH 14-918: 4.1 g/t over 46.7 m. Powerline Zone: DDH 14-105: 2.8 g/t Pd over 96.0 m; DDH 14-119: 5.7 g/t Pd over 35.3 m; DDH 14-122: 6.0 g/t Pd over 43.9 m; DDH 14-125: 6.4 g/t Pd over 62.8 m; DDH 14-126 : 4.6 g/t Pd over 62.2 m (OFR6303).


Dec 07, 2005 (Q Unknown) - PGE occur in variable amounts in almost every rock type comprising the Roby Zone, including the northern layered sequence, heterolithic gabbro, pegmatitic gabbro dikes and the shear zone. Previous studies have identified the habit and composition of individual PGM. 12 PGM have been identified in the Roby Zone, including bragite, kotulskte, isometrieite, merenskyite, moncheite, palladoarsenide, sperrylite, stibiopalladinite, stillwaterite, vysotskite, unnamed AG4Pd3Te4 and unnamed Pd5As2. The reletive order of abundance of the PGM varies considerably across the deposit. Braggite and vysotskite predominate in many areas within the southern portion of the Roby Zone, specifically in the shear zone and heterolithic gabbro. The majority of PGM occur wholly within sulphides or associated wih sulphides at sulphide-sillicate boundries. PGM also occur as discrete minerals within secondary sillicates of altered rocks, such as the shear zone and heterolithic gabbro, In addition to forming discrete PGM, palladium also occurs in solid solution in melonite, gold, and pentlandite.



Alteration Comments

Dec 07, 2005 (Q Unknown) - Alteration has occured to varying degrees throughout the Roby Zone and is most prominent in the shear zone and the heterolithic gabbro. Alteration varies with the host lithology and ranges in intensity from weak-to-srong, local-to-pervasive and is commonly intensified along narrow fractures. The orthopyroxenes have been altered to talc, anthophyllite and serpentine; clinopyroxene have been altered to actinolite, chlorite, tremolite and hornblende; and plagioclase has been altered to ziosite, epidote and sericite. Pervasive alteration results in the complete metamorphism of the primary silicates to amphibole pseudomorphs. The psydomorhic amphiboles are of use in identifying the primary cumulate mineralogy and for classification of the igneous layers. Narrow zones of mylonitization occur locally, resulting in significant decrease in grain size of the cumulus and intercumulus minerals.




Mineral Record Details

Classification
RankClassification            
1 Mafic-Ultramafic Intrusion
Characteristics
Rank Characteristic            
1 Disseminated

Mineral Zones - Size and Shape

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Irregular
Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Irregular
Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Irregular
Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Irregular 600 350 180 70
Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Lac des Iles 2022 Measured + Indicated Resource 83600000 https://www.implats.co.za/pdf/mrr-2022/Implats-Mineral-Resources-and-Mineral-Reserves-Report-2022.pdf Copper 0.061 %, Gold 0.16 g/t, Nickel 0.072 %, Palladium 2.08 g/t, Platinum 0.21 g/t
Lac des Iles 2022 Proven + Probable Reserve 40400000 https://www.implats.co.za/pdf/mrr-2022/Implats-Mineral-Resources-and-Mineral-Reserves-Report-2022.pdf Copper 0.06 %, Gold 0.13 g/t, Nickel 0.06 %, Palladium 1.92 g/t, Platinum 0.18 g/t
Lac des Iles 2021 Proven + Probable Reserve 44600000 Implats Mineral Resource and Mineral Reserve Statement as at 30 June 2021 1.9 Mt Proved, 42.6 Mt Probable, for a total of 0.26 Moz Pd, 2.81 Moz Pt, and 0.21 Moz Au contained. Gold 0.146 g/t, Palladium 1.959 g/t, Platinum 0.18 g/t
Lac des Iles 2021 Measured + Indicated Resource 82400000 Implats Mineral Resource and Mineral Reserve Statement as at 30 June 2021 10.3 Mt Measured, 72.1 Mt Indicated, for a total of 0.54 Moz Pt, 5.61 Moz Pd, and 0.95 oz Au contained. Mineral Resource estimates inclusive of Mineral Reserves. Copper 0.06 %, Gold 0.343 g/t, Nickel 0.06 %, Palladium 1.266 g/t, Platinum 0.3358 g/t
Lac des Iles Total 2020 Measured + Indicated Resource 67900000 Implats Mineral Resource and Mineral Reserve Statement as at 30 June 2020 Measured & Indicated resources: 67,900,000 t grading 2.63 g/t Pd+Pt+Au for a total of 4,910,000 oz Pd, 460,000 oz Pt, and 350,000 oz Au Gold 0.27 Grams per Tonne, Palladium 3.73 Grams per Tonne, Platinum 0.36 Grams per Tonne
Lac des Iles Total 2020 Proven + Probable Reserve 43000000 Implats Mineral Resource and Mineral Reserve Statement as at 30 June 2020 Proven & Probable Reserves: 43,000,000 t grading 2.31 g/t Pd+Pt+Au for a total of 2,740,000 oz Pd, 250,000 oz Pt, 210,000 oz Au. Gold 0.21 Grams per Tonne, Palladium 2.74 Grams per Tonne, Platinum 0.25 Grams per Tonne
Roby Block 2018 Measured + Indicated Resource 41255000 North American Palladium 2018 NI 43-101 Measured & Indicated resources: 41,255,000 t grading 1.69 g/t Pd, 0.192 g/t Pt, 0.12 g/t Au, 0.05% Cu, 0.05% Ni (includes 2,235,000 oz Pd) Copper 0.05 Percent, Gold 0.12 Grams per Tonne, Nickel 0.05 Percent, Palladium 1.69 Grams per Tonne, Platinum 0.192 Grams per Tonne
Lac des Iles total 2018 Proven + Probable Reserve 40877000 North American Palladium 2018 NI 43-101 Proven & Probable Reserves: 40,877,000 t grading 2.31 g/t Pd, 0.209 g/t Pt, 0.174 g/t Au, 0.06% Cu, 0.07 % Ni (includes 3,038,000 oz Pd) Copper 0.06 Percent, Gold 0.174 Grams per Tonne, Nickel 0.07 Percent, Palladium 2.31 Grams per Tonne, Platinum 0.209 Grams per Tonne
Offset Block 2018 Measured + Indicated Resource 28327000 North American Palladium 2018 NI 43-101 Measured & Indicated resources: 28,327,000 t grading 2.95 g/t Pd, 0.255 g/t Pt, 0.229 g/t Au, 0.08% Cu, 0.1% Ni (includes 2,682,000 oz Pd) Copper 0.08 Percent, Gold 0.229 Grams per Tonne, Nickel 0.1 Percent, Palladium 2.95 Grams per Tonne, Platinum 0.255 Grams per Tonne
Footwall Zones Underground 2015 Inferred Mineral Resource 9101000 NI 43-101: Peck et al., 2015 Offset Hangingwall Zone: 8,853,000 tonnes, 2.05 gpt Pd, 0.16 gpt Pt, 0.12 gpt Au, 0.07% Ni, 0.06% Cu; Roby Footwall Zone: 248,000 tonnes, 2.43 gpt Pd, 0.18 gpt Pt, 0.08 gpt Au, 0.03% Ni, 0.02% Cu.
Offset Hangingwall Zone Underground 2015 Inferred Mineral Resource 5407000 NI 43-101: Peck et al., 2015 Offset Hangingwall Zone: 4,581,000 tonnes, 3.90 gpt Pd, 0.27 gpt Pt, 0.25 gpt Au, 0.10% Ni, 0.09% Cu; Upper Offset SE Ext: 827,000 tonnes, 3.20 gpt Pd, 0.28 gpt Pt, 0.24 gpt Au, 0.09% Ni, 0.08% Cu.
Footwall Zones Underground 2015 Indicated Mineral Resource 4952000 NI 43-101: Peck et al., 2015 Offset Footwall Zone: 11,163,000 tonnes, 2.10 gpt Pd, 0.21 gpt Pt, 0.15 gpt Au, 0.08% Ni, 0.07% Cu; Roby Footwall Zone: 2,341,000 tonnes, 2.34 gpt Pd, 0.20 gpt Pt, 0.17 gpt Au, 0.06% Ni, 0.05% Cu.
Footwall Zones Underground 2015 Measured Mineral Resource 14743000 NI 43-101: Peck et al., 2015 Offset Footwall Zone: 10,584,000 tonnes, 2.22 gpt Pd, 0.23 gpt Pt, 0.16 gpt Au, 0.08% Ni, 0.06% Cu; Roby Footwall Zone: 4,159,000 tonnes, 2.43 gpt Pd, 0.21 gpt Pt, 0.18 gpt Au, 0.06% Ni, 0.05% Cu.
Near-Surface Resources 2015 Measured Mineral Resource 25654000 NI 43-101: Peck et al., 2015 Roby Zone Pit Expansion: 20,108,000 tonnes, 1.23 gpt Pd, 0.17 gpt Pt, 0.10 gpt Au, 0.07% Ni, 0.05% Cu; Powerline Zone: 251,000 tonnes, 3.04 gpt Pd, 0.22 gpt Pt, 0.12 gpt Au, 0.06% Ni, 0.04% Cu; Sheriff Zone: 4,858,000 tonnes, 1.45 gpt Pd, 0.15 gpt Pt, 0.09 gpt Au, 0.06% Ni, 0.06% Cu; North VT Rim: 437,000 tonnes, 2.03 gpt Pd, 0.12 gpt Pt, 0.03 gpt Au, 0.03% Ni, 0.01% Cu.
Offset Hangingwall Zone Underground 2015 Indicated Mineral Resource 4952000 NI 43-101: Peck et al., 2015 4.36 gpt Pd, 0.31 gpt Pt, 0.30 gpt Au, 0.12% Ni, 0.09% Cu; 694,000 oz Pd
Near-Surface Resources 2015 Inferred Mineral Resource 530000 NI 43-101: Peck et al., 2015 Powerline Zone: 51,000 tonnes, 3.10 gpt Pd, 0.28 gpt Pt, 0.09 gpt Au, 0.05% Ni, 0.05% Cu; Sheriff Zone: 479,000 tonnes, 1.50 gpt Pd, 0.21 gpt Pt, 0.10 gpt Au, 0.07% Ni, 0.07% Cu.
Offset Hangingwall Zone Underground 2015 Measured Mineral Resource 2683000 NI 43-101: Peck et al., 2015 4.36 gpt Pd, 0.31 gpt Pt, 0.29 gpt Au, 0.11% Ni, 0.08% Cu; 376,000 oz Pd
Lac des Iles total 2015 Proven + Probable Reserve 20367000 North American Palladium news release Feb 25, 2015 Proven & Probable Reserves: 20,367,000 t grading 2.13 g/t Pd, 0.18 g/t Pt, 0.16 g/t Au, 0.05% Cu, 0.08 % Ni (includes 1 395 000 oz Pd) Copper 0.05 Percent, Gold 0.16 Grams per Tonne, Nickel 0.08 Percent, Palladium 2.13 Grams per Tonne, Platinum 0.18 Grams per Tonne
Lac des Iles total 2015 Measured + Indicated Resource 71468000 North American Palladium news release Feb 25, 2015 Measured & Indicated Resources: 71,468,000 t grading 1.98g/t Pd, 0.20 g/t Pt, 0.14 g/t Au, 0.06% Cu, 0.08 % Ni (includes 4 543 000 oz Pd). Copper 0.06 Percent, Gold 0.14 Grams per Tonne, Nickel 0.08 Percent, Palladium 1.98 Grams per Tonne, Platinum 0.2 Grams per Tonne
Near-Surface Resources 2015 Indicated Mineral Resource 9932000 NI 43-101: Peck et al., 2015 Roby Zone Pit Expansion: 9,634,000 tonnes, 1.20 gpt Pd, 0.17 gpt Pt, 0.10 gpt Au, 0.07% Ni, 0.05% Cu; Powerline Zone: 65,000 tonnes, 2.48 gpt Pd, 0.20 gpt Pt, 0.08 gpt Au, 0.05% Ni, 0.04% Cu; Sheriff Zone: 220,000 tonnes, 1.29 gpt Pd, 0.16 gpt Pt, 0.09 gpt Au, 0.06% Ni, 0.06% Cu; North VT Rim: 14,000 tonnes, 1.75 gpt Pd, 0.12 gpt Pt, 0.03 gpt Au, 0.03% Ni, 0.01% Cu.
Offset Zone 2013 Probable Mineral Reserve 2109000 NI43-101: 2013, McCracken, P.Geo.et al, TECHNICAL REPORT LAC DES ILES MINE, ONTARIO, INCORPORATING PREFEASIBILITY STUDY OFFSET ZONE PHASE I STUDY OFFSET ZONE PHASE I Offset Zone; 2,109,000 tonnes 4.17 g/t Pd, 0.30 g/t Pt, 0.29 g/t Au, 0.10% Ni, 0.08% Cu. Total P&P Reserve: 8,883,000 tonnes 4.21 g/t Pd, 0.30 g/t Pt, 0.29 g/t Au, 0.11% Ni, 0.08% Cu at 2.5 g/t Cut off.
Offset Zone 2013 Inferred Mineral Resource 13669000 NI 43-101 News Release Feb 19 2013 Using a 2.5 g/t cutoff: 13 669 000 tonnes and 3.59 g/t Pd, 0.30 g/t Pt, 0.23 g/t Au, 0.09 % Ni, 0.08 % Cu (1 576 000 oz Pd)
Offset+Roby+Open Pit 2013 Proven Mineral Reserve 6774000 NI43-101: 2013, McCracken, P.Geo.et al, TECHNICAL REPORT LAC DES ILES MINE, ONTARIO, INCORPORATING PREFEASIBILITY STUDY OFFSET ZONE PHASE I Offset Zone 5,632,000 tonnes of 4.34 g/t Pd, 0.30 g/t Pt, 0.30 g/t Au, 0.11% Ni, 0.08% Cu at 2.5 g/t Cut-off. Roby Underground: 420,000 tonnes of 6.38 g/t Pd, 0.42 g/t Pt, 0.34 g/t Au, 0.08% Ni, 0.07% Cu at 5.8 g/t Cut-off. Open Pit: 722,000 tonnes of 1.99 g/t Pd, 0.21 g/t Pd, 0.22 g/t Au, 0.11% Ni 0.10 % Cu at1.8 g/t Cut-off. Total P&P Reserve: 8,883,000 tonnes 4.21 g/t Pd, 0.30 g/t Pt, 0.29 g/t Au, 0.11% Ni, 0.08% Cu
Offset Zone 2013 Measured + Indicated Resource 22053000 NI 43-101 News ReleaseFeb 19, 2013 Using a 2.5 g/t cutoff: Total Measured and Indicated 22 053 000 tonnes and 4.41 g/t Pd, 0.32 g/t Pt, 0.31 g/t Au, 0.12 % Ni, 0.09 % Cu (3 128 000 oz Pd)
Lac des Iles Mine 2013 Proven + Probable Reserve 15046000 OFR 6293 Proven and probable reserves as of Dec. 31, 2013: 15 046 000 t grading 2.77 g/t Pd, 0.21 g/t Pt, 0.20 g/t Au, 0.06% Cu, 0.08% Ni for a total of 1 341 000 oz Pd. Measured and indicated resources as of Dec. 31, 2013: 57 732 000 t grading 2.08 g/t Pd, 0.21 g/t Pt, 0.15 g/t Au, 0.06% Cu, 0.08% Ni for a total of 3 857 000 oz Pd
Combined Offset, Roby, Open Pit and Low grade stoc 2012 Measured + Indicated Resource 33273000 NI 43-101 Combined for the Offset zone, Roby Zone, Open Pit and Low Grade stockpile as of March 31 2012: 33 273 000 t at 3.18 g/t Pd, 0.25 g/t Pt, 0.22 g/t Au, 0.09% nI AND 0.07% Cu. (News Release August 8th 2012)
Combined Underground and Open Pit 2012 Proven + Probable Reserve 1143000 NI 43-101 Proven and Probable reserves (combined underground and open pit) as of March 31st, 2012: 1 143 000 t@ 3.61 g/t Au, 0.1% Ni and 0.09%Cu.
Offset Zone 2009 Inferred Mineral Resource 3322000 North American Palladium Annual Report 2010, p. 24 609,000 oz Pd Copper 0.074 Percent, Gold 0.233 Grams per Tonne, Nickel 0.095 Percent, Palladium 5.70 Grams per Tonne, Platinum 0.352 Grams per Tonne
Offset Zone 2009 Indicated Mineral Resource 8628000 North American Palladium Annual Report 2010, p. 24 1,745,000 oz Pd Copper 0.110 Percent, Gold 0.395 Grams per Tonne, Nickel 0.136 Percent, Palladium 6.29 Grams per Tonne, Platinum 0.419 Grams per Tonne
LDI Mine 2008 Measured + Indicated Resource 36038000 North American Palladium Annual Report 2008, p. 7 3,682,000 oz Pd, 303,000 oz Pt Copper 0.07 Percent, Gold 0.22 Grams per Tonne, Nickel 0.09 Percent, Palladium 3.18 Grams per Tonne, Platinum 0.26 Grams per Tonne
LDI Underground Offset Zone 2007 Inferred Mineral Resource 12794000 North American Palladium Annual Report 2007 2,160,000 oz Pd, 156,000 oz Pt Copper 0.11 Percent, Gold 0.37 Grams per Tonne, Nickel 0.12 Percent, Palladium 5.25 Grams per Tonne, Platinum 0.38 Grams per Tonne
LDI Underground Offset Zone 2007 Indicated Mineral Resource 3239000 North American Palladium Annual Report 2007 568,000 oz Pd, 40,000 oz Pt Copper 0.12 Percent, Gold 0.39 Grams per Tonne, Nickel 0.13 Percent, Palladium 5.45 Grams per Tonne, Platinum 0.38 Grams per Tonne
LDI Underground Roby 2007 Indicated Mineral Resource 1337000 North American Palladium Annual Report 2007 329,000 oz Pd, 19,000 oz Pt Copper 0.07 Percent, Gold 0.37 Grams per Tonne, Nickel 0.08 Percent, Palladium 7.65 Grams per Tonne, Platinum 0.44 Grams per Tonne
LDI Underground Roby 2007 Inferred Mineral Resource 127000 North American Palladium Annual Report 2007 29,000 oz Pd, 2,000 oz Pt Copper 0.03 Percent, Gold 0.19 Grams per Tonne, Nickel 0.04 Percent, Palladium 7.07 Grams per Tonne, Platinum 0.37 Grams per Tonne
LDI Open PIt 2007 Proven 5102000 North American Palladium Annual Report 2007 399,000 oz Pd, 35,000 oz Pt Copper 0.07 Percent, Gold 0.20 Grams per Tonne, Nickel 0.09 Percent, Palladium 2.44 Grams per Tonne, Platinum 0.21 Grams per Tonne
LDI Open PIt 2007 Probable Mineral Reserve 6139000 North American Palladium Annual Report 2007 258,000 oz Pd, 29,000 oz Pt Copper 0.04 Percent, Gold 0.11 Grams per Tonne, Nickel 0.07 Percent, Palladium 1.31 Grams per Tonne, Platinum 0.14 Grams per Tonne
LDI Open PIt 2007 Measured + Indicated Resource 22034000 North American Palladium Annual Report 2007 966,000 oz Pd, 127,000 oz Pt Copper 0.05 Percent, Gold 0.1 Grams per Tonne, Nickel 0.07 Percent, Palladium 1.36 Grams per Tonne, Platinum 0.18 Grams per Tonne
Open Pit - LDI 2006 Probable Mineral Reserve 2616000 North American Palladium Ltd., Rev Annual Information Form for the year ended Dec.31, 2006, dated Mar.30, 2007 amended & restated Jun.4, 2007. 2,616,000 Tonnes @ 2.06g/t Pd, 0.215g/t Pt 0.173g/t Au 0.075% Cu, 0.087%Ni, for a total of 173,000oz Pd, 18,000oz Pt
Underground - LDI 2006 Proven 5680 North American Palladium Ltd., Rev Annual Information Form for the year ended Dec.31, 2006, dated Mar.30, 2007 amended & restated Jun.4, 2007. 5,680 Tonnes @ 5.844g/t Pd, 0.380g/t Pd, 0.439g/t Au, 0.103% Cu, 0.106% Ni, for a total of 1,000oz Pd & 70oz Pt.
Offset High Grade Zone 2006 Inferred Mineral Resource 12794000 North American Palladium Ltd., Rev Annual Information Form for the year ended Dec.31, 2006, dated Mar.30, 2007 amended & restated Jun.4, 2007. 12,794,000 Tonnes @ 5.25g/t Pd, 0.38g/t Pt, 0.37g/t Au, 0.108% Cu, 0.124% 0.133%Ni, for a total of 2,160,000oz Pd & 156,000oz Pt.
Offset High Grade Zone 2006 Indicated Mineral Resource 3239000 North American Palladium Ltd., Rev Annual Information Form for the year ended Dec.31, 2006, dated Mar.30, 2007 amended & restated Jun.4, 2007. 3,239,000 Tonnes @ 5.45g/t Pd, 0.38g/t Pt, 0.39g/t Au, 0.121% Cu, 0.133% Ni, for total of 568,000oz Pd & 40,000oz Pt.
Open Pit - LDI 2006 Measured + Indicated Resource 25030000 North American Palladium Ltd., Rev Annual Information Form for the year ended Dec.31, 2006, dated Mar.30, 2007 amended & restated Jun.4, 2007. 25,030,000 Tonnes 1.318g/t Pd, 0.173g/t Pt, 0.102g/t Au, 0.048% Cu, 0.067%Ni, for a total of 1,061,000oz Pd & 139,000oz Pt.
Open Pit - LDI 2006 Proven 6853000 North American Palladium Ltd., Rev Annual Information Form for the year ended Dec.31, 2006, dated Mar.30, 2007 amended & restated Jun.4, 2007. 6,853,000 Tonnes @ 2.353g/t Pd, 0.221g/t Pt, 0.188 g/t Au, 0.072% Cu 0.085% Ni for a total of 518,000oz Pd & 49,000oz Pt.
Roby High Grade Zone 2006 Indicated Mineral Resource 1337000 North American Palladium Ltd., Rev Annual Information Form for the year ended Dec.31, 2006, dated Mar.30, 2007 amended & restated Jun.4, 2007. 1,337,000 Tonnes @ 7.65g/t Pd, 0.44g/t Pt, 0.37g/t Au, 0.07%Cu, 0.08%Ni, for a total of 329,000oz Pd & 19,000oz Pt.
Underground - LDI 2006 Probable Mineral Reserve 2695000 North American Palladium Ltd., Rev Annual Information Form for the year ended Dec.31, 2006, dated Mar.30, 2007 amended & restated Jun.4, 2007. 2,695,000 Tonnes @ 6.58g/t Pd, 0.40g/t Pt, 0.33g/t Au 0.07% Cu, 0.08% Ni, for a total of 570,000oz Pd & 35,000oz Pd.
Open Pit - LDI Stockpile 2006 Proven 604000 North American Palladium Ltd., Rev Annual Information Form for the year ended Dec.31, 2006, dated Mar.30, 2007 amended & restated Jun.4, 2007. 604,000 Tonnes @ 1.772g/t Pd, 0.195g/t Pt, 0.156g/t Au, 0.058%Cu, 0.076% Ni, for a total of 34,000oz Pd & 4,000oz Pt.
LDI Open Pit 2005 Proven + Probable Reserve 13554000 Canadian & American Mines Handbook 2006-07, p. 319 Proven & Probable, 929,000 oz Pd and 97,000 oz Pt Copper 0.07 Percent, Gold 0.16 Grams per Tonne, Nickel 0.06 Percent, Palladium 2.13 Grams per Tonne, Platinum 0.22 Grams per Tonne
LDI Open Pit 2004 Proven + Probable Reserve 28553000 Canadian & American Mines Handbook 2005-06, p. 303 Proven & Probable, 1,651,000 oz Pd and 190,000 oz Pt Copper 0.06 Percent, Gold 0.14 Grams per Tonne, Nickel 0.08 Percent, Palladium 1.80 Grams per Tonne, Platinum 0.21 Grams per Tonne
LDI Underground 2003 Proven + Probable Reserve 3542000 Canadian & American Mines Handbook 2004-05, p. 315 Proven & Probable, 754,000 oz Pd and 46,000 oz Pt Copper 0.07 Percent, Gold 0.34 Grams per Tonne, Nickel 0.08 Percent, Palladium 6.62 Grams per Tonne, Platinum 0.40 Grams per Tonne
LDI Open Pit 2003 Proven + Probable Reserve 36203000 Canadian & American Mines Handbook 2004-05, p. 315 Proven & Probable, 2,143,000 oz Pd and 237,000 oz Pt Copper 0.06 Percent, Gold 0.15 Grams per Tonne, Nickel 0.08 Percent, Palladium 1.84 Grams per Tonne, Platinum 0.20 Grams per Tonne
LDI Mine 2002 Proven + Probable Reserve 88649000 Canadian Mines Handbook 2003-04, p. 369 Proven & Probable; 4,304,000 oz Pd and 479,000 oz Pt Copper 0.06 Percent, Gold 0.12 Grams per Tonne, Nickel 0.05 Percent, Palladium 1.51 Grams per Tonne, Platinum 0.17 Grams per Tonne
LDI Mine 2001 Proven + Probable Reserve 93501000 Canadian Mines Handbook 2002-03, p. 312 Proven & Probable Copper 0.06 Percent, Gold 0.12 Grams per Tonne, Nickel 0.05 Percent, Palladium 1.53 Grams per Tonne, Platinum 0.17 Grams per Tonne
LDI Mine 2000 Proven + Probable Reserve 96163000 Canadian Mines Handbook 2001-02, p. 271 Proven & Probable Copper 0.06 Percent, Gold 0.12 Grams per Tonne, Nickel 0.05 Percent, Palladium 1.55 Grams per Tonne, Platinum 0.17 Grams per Tonne
LDI Mine 1999 Proven + Probable Reserve 73208000 Canadian Mines Handbook 2000-01, p. 285 Proven & Probable Copper 0.066 Percent, Gold 0.14 Grams per Tonne, Nickel 0.054 Percent, Palladium 1.64 Grams per Tonne, Platinum 0.18 Grams per Tonne
Roby Zone 1997 Proven 7800000 Canadian Mines Handbook 1998-99, p. 336 Platinum Metals 0.123 Ounce per Ton
Roby Zone 1996 Unclassified 12420000 Canadian Mines Handbook 1997-98, p. 339 Platinum Metals 0.168 Ounce per Ton
Lac des Iles Mine 1995 Unclassified 22600000 Canadian Mines Handbook 1996-97, p. 317 Gold 0.02 Ounce per Ton, Platinum Metals 0.19 Ounce per Ton
Production Data
Year Tonnes Commodities Reference Comment
2022 3685000 Implats 2022 annual results booklet
2022 3685000 Palladium 212900 Ounces
Platinum 18700 Ounces
https://www.implats-ir.co.za/results/2022/annual-results-2022/pdf/key-statistics.pdf Production from July 1, 2021 to June 30, 2022, head grade 2.68 g/t
2021 3901000 Palladium 227500 Ounces
Platinum 16500 Ounces
Implats Annual Results 2021 segmental information: https://www.implats-ir.co.za/results/2021/annual-results-2021/pdf/segmental-information.pdf Production from July 1, 2020 to June 30, 2021
2021 3901000 Implats 2022 annual results booklet Production from July 1, 2020-June 30, 2021
2020 1553000 Palladium 84700 Ounces
Platinum 6400 Ounces
OFR6373, p.2, Implats 2021 annual results booklet Production from July 1, 2019 to June 30, 2020
2019 2770919 Gold 11649 Ounces
Copper 2974849 Pounds
Palladium 168054 Ounces
Platinum 10479 Ounces
OFR6365, p.2 Production to Q3 2019; 168,054 oz Pd, 10,479 oz Pt, 11,649 oz Au, 2,974,849 lb Cu
2018 4237734 Gold 15816 Ounces
Copper 4546499 Pounds
Palladium 242686 Ounces
Platinum 16368 Ounces
North American Palladium Annual Information Form March 22, 2019 242,686 oz Pd, 16,368 oz Pt, 15,816 oz Au, 4,546,499 lb Cu
2017 2780119 Gold 13295 Ounces
Copper 3123144 Pounds
Nickel 70517 Pounds
Palladium 201592 Ounces
Platinum 12267 Ounces
North American Palladium 2018 NI 43-101 201,592 oz Pd, 12,267 oz Pt, 13,295 Au, 3,123,144 lb Cu, 70,517 lb Ni
2016 1996484 Gold 9671 Ounces
Copper 2234976 Pounds
Nickel 810111 Pounds
Palladium 149563 Ounces
Platinum 10230 Ounces
North American Palladium 2016 Annual Report 149,563 oz Pd, 10,230 oz Pt, 9,671 oz Au, 2,234,976 lb Cu, 810,111 lb Ni
2015 2135915 Gold 10484 Ounces
Copper 2519100 Pounds
Nickel 1297664 Pounds
Palladium 166785 Ounces
Platinum 12295 Ounces
North American Palladium 2015 Annual Report 166,785 oz Pd, 12,295 oz Pt, 10,484 oz Au, 2,519,100 lb Cu, 1,297,664 lb Ni
2014 2684782 Gold 11607 Ounces
Copper 3029525 Pounds
Nickel 1677820 Pounds
Palladium 174194 Ounces
Platinum 13072 Ounces
North American Palladium 2014 Annual Report Pd head grade 2.7 g/t; 174,194 oz Pd, 13,072 oz Pt, 11,607 oz Au, 3,029,525 lb Cu, 1,677,820 lb Ni
2013 2048082 Gold 10423 Ounces
Copper 2828271 Pounds
Nickel 1437311 Pounds
Palladium 135158 Ounces
Platinum 10222 Ounces
North American Palladium Annual Report 2013 Pd head grade 2.8 g/t; 135,158 oz Pd, 10,222 oz Pt, 10,423 oz Au, 2,828,271 lb Cu, 1,437,311 lb Ni
2012 2063260 Gold 11106 Ounces
Cobalt 12368 Pounds
Copper 2592748 Pounds
Nickel 1348179 Pounds
Palladium 11187 Ounces
Platinum 163980 Ounces
North American Palladium Annual Report 2012 163,980 oz Pd, 11,187 oz Pt, 11,106 oz Au, 2,597,748 lb Cu, 1,348,179 lb Ni, 12,368 lb Co
2011 1689781 Gold 7267 Ounces
Cobalt 20839 Pounds
Copper 1596185 Pounds
Nickel 816037 Pounds
Palladium 146624 Ounces
Platinum 9143 Ounces
North American Palladium 2011 Annual Report 146,624 oz Pd, 9,143 oz Pt, 7,267 oz Au, 1,596,185 lb Cu, 816,037 lb Ni, 20,839 lb Co
2010 649649 Gold 4023 Ounces
Cobalt 9801 Pounds
Copper 658013 Pounds
Nickel 395622 Pounds
Palladium 95057 Ounces
Platinum 4894 Ounces
North American Palladium Annual Report 2010 Production restarted in April 2010. 95,057 oz Pd, 4,894 oz Pt, 4,023 oz Au, 658,013 lb Cu, 395,622 lb Ni, 9,801 lb Co
2009 0 North American Palladium Annual Report 2009 Mine was put on care and maintenance in Oct 2008 when metal prices declined
2008 3722732 Gold 15921 Ounces
Copper 4623278 Pounds
Nickel 2503902 Pounds
Palladium 212046 Ounces
Platinum 16311 Ounces
North American Palladium Annual Report 2008, p. 12 212,046 oz Pd, 16,311 oz Pt, 15,921 oz Au, 4,623,278 lb Cu, 2,503,902 lb Ni
2007 5006383 Gold 20092 Ounces
Copper 5536044 Pounds
Nickel 3066973 Pounds
Palladium 286334 Ounces
Platinum 24442 Ounces
North American Palladium Annual Report 2007, p. 27 286,334 oz Pd, 24,442 oz Pt, 20,092 oz Au, 5,536,044 lb Cu, 3,066,973 lb Ni
2006 4570926 Gold 17237 Ounces
Copper 5155588 Pounds
Nickel 2721042 Pounds
Palladium 237338 Ounces
Platinum 22308 Ounces
Scott et al, 2007, ROA 2006; OFR6202 p1, North American Palladium 2006 Annual Report 2006 production: 237,338 oz Pd, 22,308 oz Pt, 17,237 o Au, 5,155,588 lb Cu, 2,721,042 lb Ni. Total production to end of 2006: 32,611,971 t for total of 1,860,736 oz Pd, 153,277 oz Pt, 138,863 oz Au, 42,083,764 lbs Cu, 23,995,023 lbs Ni
2005 44780599 Gold 14308 Ounces
Copper 5514670 Pounds
Nickel 2353227 Pounds
Palladium 177167 Ounces
Platinum 18833 Ounces
North American Palladium Annual Report 2007, p. 17 177,167 oz Pd, 18,833 Pt, 14,308 oz Au, 5,514,670 lb Cu, 2,353,227 lb Ni
2004 52985444 Gold 25679 Ounces
Copper 7836183 Pounds
Nickel 4320970 Pounds
Palladium 208931 Ounces
Platinum 25128 Ounces
North American Palladium 2004 Annual Report 208,931 oz Pd, 25,128 oz Pt, 25,679 oz Au, 7.836.183 lb Cu, 4,320,970 lb Ni
2003 5159730 Gold 23536 Ounces
Copper 7142674 Pounds
Nickel 4070785 Pounds
Palladium 288703 Ounces
Platinum 23742 Ounces
North American Palladium 2003 Annual Report 288,703 oz Pd, 23,742 oz Pt, 23,536 oz Au, 7,142,674 lb Cu, 4,070,785 lb Ni
2002 4851621 Gold 16030 Ounces
Copper 5295486 Pounds
Nickel 2763654 Pounds
Palladium 219325 Ounces
Platinum 19180 Ounces
North American Palladium 2002 Annual Report 219,325 oz Pd, 19,180 oz Pt, 16,030 oz Au, 5,295,486 lb Cu, 2,763,654 lb Ni
2001 2662240 Gold 9603 Ounces
Copper 3123763 Pounds
Nickel 1595179 Pounds
Palladium 123281 Ounces
Platinum 10073 Ounces
North American Palladium 2001 Annual Report 123,281 oz Pd, 10,073 ox Pt, 9,603 oz Au, 3,123,763 lb Cu, 1,595,179 lb NI
2000 893017 Gold 6035 Ounces
Copper 1362266 Pounds
Nickel 1035485 Pounds
Palladium 95116 Ounces
Platinum 6074 Ounces
North American Palladium 2000 Annual Report 95,116 oz Pd, 6,074 oz Pt, 6,035 oz Au, 1,362,266 lb Cu, 1,035,485 lb Ni
1999 894168 Gold 4888 Ounces
Copper 1377464 Pounds
Nickel 973817 Pounds
Palladium 64441 Ounces
Platinum 4744 Ounces
North American Palladium 1999 Annual Report
1998 859942 Gold 5079 Ounces
Copper 1229309 Pounds
Nickel 914030 Pounds
Palladium 84228 Ounces
Platinum 5535 Ounces
North American Palladium 1999 Annual Report 84,228 oz Pd, 5,535 oz Pt, 5,079 oz Au, 1,229,309 lb Cu, 914,030 lb Ni
1997 728641 Gold 4324 Ounces
Copper 1133565 Pounds
Nickel 864093 Pounds
Palladium 66086 Ounces
Platinum 4588 Ounces
North American Palladium 1999 Annual Report 66,086 oz Pd, 4,588 oz Pt, 4,324 oz Au, 1,133,565 lb Cu, 864,093 lb Ni
1996 686964 Gold 3811 Ounces
Copper 941105 Pounds
Nickel 740689 Pounds
Palladium 60426 Ounces
Platinum 4285 Ounces
North American Palladium 1999 Annual Report 60,426 oz Pd, 4,285 oz Pt, 3,811 oz Au, 941,105 lb Cu, 740,689 lb Ni
1995 716648 Gold 4870 Ounces
Copper 1162677 Pounds
Nickel 978857 Pounds
Palladium 76668 Ounces
Platinum 5013 Ounces
North American Palladium 1999 Annual Report 76,668 oz Pd, 5,013 oz Pt, 4,870 oz Au, 1,162,677 lb Cu, 978,857 lb Ni

References

Publication - NI 43-101 Technical Report for Lac des Iles Mine, Ontario Inc.; A Preliminary Economic Assessment of the Mine Expansion Plan

Publication Number: 2015 43-101 Date: 2015

Author: Peck, D., Decarte, D., Penna, D., Roney, C., Young, B., Duinker, R.

Publisher Name: Hatch for North American Palladium Ltd.

Location: SEDAR


Map - Lac des Iles sheet, Thunder Bay District

Publication Number: M2135 Scale: 1:31,680    Date: 1967

Author: Pye E.G.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Report of Activities 2020, Resident Geologist Program, Thunder Bay South Regional Resident Geologist Report: Thunder Bay South District

Publication Number: OFR6373 Date: 2021

Author: Campbell D.A., Dorado-Troughton M., Pettigrew T.K., Ferguson S.A., Dorland G., Patterson C.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Geology of Lac des Iles area, District of Thunder Bay

Publication Number: R064 Page: 36-42  Date: 1968

Author: Pye E.G.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Precambrian Geology, Lac des Iles Area

Publication Number: P3532 Scale: 1:50,000    Date: 2003

Author: Stone D., Fell M., Daley A., Schnieders B.R., Scott J.F., Nielsen P., Wagner D.

Publisher Name: Ontario Geological Survey

Location:


Mono - Copper, nickel, lead and zinc deposits of Ontario

Publication Number: MDC012 Page: 331  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:


File - Mineral Deposit Files Thunder Bay

Publication Number: MDF-TB Date: 2003

Author:

Publisher Name:

Location: OGS THUNDER BAY


Compend - Summary of Field Work and Other Activities, 2003

Publication Number: OFR6120 Page: 15.1-15.25  Date: 2003

Author: Baker C.L., Kelly R.I., Parker J.R., Ayer J.A., Easton R.M.

Publisher Name: Ontario Geological Survey

Location:


Map - Lac des Iles area, District of Thunder Bay

Publication Number: P0275 Scale: 1:15,840    Date: 1997

Author: Pye E.G.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Geological series, Precambrian geology, Lac des Iles complex, District of Thunder Bay

Publication Number: P3047 Scale: 1:15,840    Date: 1986

Author: Sutcliffe R.H., Sweeny J.M.

Publisher Name: Ontario Geological Survey

Location:


Map - Geological series, Precambrian geology, plutonic rocks in the Lac des Iles-Tib Lake area, District of Thunder Bay

Publication Number: P3098 Scale: 1:50,000    Date: 1988

Author: Sutcliffe R.H., Smith A.R.

Publisher Name: Ontario Geological Survey

Location:


Map - Geological compilation series, Lac des Iles sheet, District of Thunder Bay

Publication Number: P0187 Scale: 1:126,720    Date: 1997

Author: Pye E.G., Fenwick K.G.

Publisher Name: Ontario Dept. of Mines

Location:


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