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Ontario Geological Survey
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MDI42C12NW00005
| Record Name(s) | Williams Mine - 1999, Hemlo - 2002, Page-Williams - 1986, Ollmann-Williams - 1986 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Producing Mine |
| Date Created | 1986-Oct-14 |
| Date Last Modified | 2024-Jun-26 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Molybdenum, Barite, Mercury, Antimony, Silver
Township or Area: Bomby
Latitude: 48° 41' 42.94" Longitude: -85° 55' 9.83"
UTM Zone: 16 Easting: 579518.5 Northing: 5394143.79 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42C12NW
Point Location Description: Large operating mine
Location Method: Conversion from MDI
Access Description: Approx. 35 km east of Marathon and 50 km south of Manitouwadge, Ontario. Highway 17 bisects the area in an east-west direction and provides the best access to the area. The main CP line also traverses the area and roughly parallels the highway within about 1km to the south.
1945: Initial 11 claims staked. 1945: Limited stripping and trenching which revealed a persistent, strongly sheared zone. 1947: 15 X-Ray diamond drill holes drilled on Lake Superior Shear Zone. Dec 1947: Claims patented. 1981: LAC Minerals Ltd. acquired Williams claims. Aug 1982: LAC announces the discovery of the deposit on their property. 1985: Williams Mine begins production in December. March 1986: Supreme Court awards the Page-Williams Mine to International Corona Res. Ltd. LAC appeals the decision and in 1989 the mine is finally awarded to Corona who shortens the name to the William's Mine. 50% interest in the mine held by Teck Resources Ltd. 1991: completed DDH program to test downward extension of lower main zone. Drifting & drilling on 9450 level to explore main zone W of shaft. 1992: began drilling on C Zone after completion of drift on 9975 level. In August, International Corona merged with Homestake Mining Company. In December, a subsidiary, Homestake Canada Inc. was established to run the Williams and David Bell Mines. 1999: production from Williams Mine and neighbouring David Bell mine processed together at the Williams mill. 2001: Homestake Mining Company merged with Barrick Gold Corp. 2009: Barrick purchased Teck’s 50% interest in the mine. Barrick now owns 100% of the Hemlo operations.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63A.31 | 42C12NW0172 | 42C12NW0172 |
| 2.17923 | 42C12NW0037 | 42C12NW0037 |
| 18 | 42C12NW0149 | 42C12NW0149 |
| 2.23773 | 42C12NW2004 | 42C12NW2004 |
| 2.28546 | 42C12NW2011 | 42C12NW2011 |
| 17 | 42C12NW0150 | 42C12NW0150 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Schreiber-Hemlo
Geological Age: Neoarchean Geochronological Age: 2600 - 2800 MA
Dec 07, 2005 (Q Unknown) - The major rock units on the property strike 108 degrees and dip from 60 to 70 degrees to the northeast. The general property stratigraphy from south to north is maficvolcanic rocks, lower metasedimentary rocks, an altered felsic porphyry rock unit, the gold mineralized rocks, and the upper metasedimentary rock sequence. Lower and upper denote the reletive structural positions of the metasedimentary rock units as the younging directions are unclear. An intermediate intrusive unit divides the felsic porphyry unit into two segments at the east end of the property. All of the major rock units are highly deformed.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 |
|---|---|---|---|---|
| Terrigenous-Clastic-Unsubdivided | 1 | |||
| Schist-Unsubdivided | 2 | Host | ||
| Porphyry-unsubdivided | 4 | |||
| Granitoid-Unsubdivided | 5 |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Barite | Economic | Ore | ||||
| 2 | Cinnabar | Economic | Ore | ||||
| 3 | Gold | Economic | Ore | ||||
| 4 | Molybdenite | Economic | Ore | ||||
| 5 | Orpiment | Economic | Ore | ||||
| 6 | Pyrite | Economic | Ore | ||||
| 7 | Pyrrhotite | Economic | Ore | ||||
| 8 | Realgar | Economic | Ore | ||||
| 9 | Stibnite | Economic | Ore | ||||
| Carbonate | Alteration | Carbonatization | 1 | Weak | Disseminated | ||
| Tourmaline | Alteration | Tourmalinization | 2 | Weak | Disseminated | ||
| Pyrite | Alteration | Pyritic | 3 | Medium | Disseminated | ||
| Albite | Alteration | Feldspathization | 4 | Strong | Veins | ||
| Silicate | Alteration | Silicification | 5 | Medium | Massive | ||
| Biotite | Alteration | Biotitic | 6 | Medium | Network | ||
| Sericite | Alteration | Sericitization | 7 | Medium | Network | ||
| Microcline | Alteration | Feldspathization | 8 | Strong | Massive |
Nov 27, 2020 (Q Unknown) - The C zone orebodies are numerous, mostly east striking, tabular to lensoid zones which have been defined largely by a surface percussion-drilling program. The C100 orebodies also have a west-northwest striking component. The extents of the orebodies are in part, a function of the drilling grid undertaken. The C100 series are hosted in what are interpreted to be metamorphosed feldspathic arenite, feldspathic siltstone, feldspathic lithic arenite and feldspathic conglomerate. The C200 series ore zones are hosted in feldspathic conglomerate and feldspathic lithic arenite. The C300 series ore zones are hosted in varieties of felsic, quartz-plagioclase-phyric, subvolcanic and possibly volcanic rocks. The B zone, the main ore zone of the Williams property, is not exposed at surface. Sufficient information required to judge whether mineralization exposed in the Heritage east outcrop may be connected to the B Zone is not available. A few surface zones of mineralization at the Heritage east outcrop area gave gold values of 5.5 g/t across 2 m, 3 to 3.5 g/t across less than 1.5 m and less than 1.0 g/t across less than 1 m. The A zone is completely mined out in both underground and open pit operations: the latter was completed by July 1986. The open pit operation yielded, from 3.8 million tons of rock, approx. 800,000 t of ore grading 5.13 g/t gold with a cutoff grade of about 1.5 g/t.
Dec 07, 2005 (Q Unknown) - One of the greatest difficulties is distinguishing between 1) unaltered and altered rocks; 2) alteration directly associated with the Hemlo gold deposit and alteration from other events (eg. intrusions, metamorphism); and 3) relative ages of types of alteration.
| Rank | Classification |
|---|---|
| 1 | Metamorphic |
| Rank | Characteristic |
|---|---|
| 2 | Fault |
| 1 | Sheared |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Hemlo | 2023 | Proven + Probable Reserve | 34000000 | OFR6409, p.2 | 1.7 Moz Au contained | Gold 1.6 g/t |
| Hemlo | 2023 | Measured + Indicated Resource | 62000000 | OFR6409, p.2 | 3.2 Moz Au contained | Gold 1.63 g/t |
| Hemlo | 2022 | Proven + Probable Reserve | 23000000 | Barrick 2022 Annual report | 1.7 Moz Au contained | Gold 2.25 g/t |
| Hemlo | 2022 | Measured + Indicated Resource | 52720000 | Barrick 2022 Annual report | 3.6 Moz Au contained | Gold 2.13 g/t |
| Williams Mine | 2020 | Measured + Indicated Resource | 42700000 | OFR6373 p. 2 | Measured & Indicated reserves as of December 31, 2020: 42,700,000 tonnes grading 2.4 g/t Au for a total of 3,300,000 oz Au. | Gold 2.4 g/t |
| Williams Mine | 2020 | Proven + Probable Reserve | 9600000 | OFR6373 p. 2 | Proven & probable reserves as of December 31, 2020: 9,600,000 tonnes grading 4.82 g/t Au for a total of 1,500,000 oz Au | Gold 4.82 g/t |
| Williams Mine | 2018 | Measured + Indicated Resource | 37470000 | OFR6353 p. 2 | Measured & Indicated reserves as of December 31, 2018: 37,470,000 tonnes grading 1.31 g/t Au for a total of 1,574,000 oz Au. | Gold 1.31 Grams per Tonne |
| Williams Mine | 2018 | Proven + Probable Reserve | 24102000 | OFR6353 p. 2 | Proven & probable reserves as of December 31, 2018: 24,102,000 tonnes grading 2.48 g/t Au for a total of 1,924,000 oz Au | Gold 2.48 Grams per Tonne |
| Barrick Hemlo | 2017 | Proven + Probable Reserve | 24928000 | Barrick�s 2017 Annual Report | Proven & probable reserves as of December 31, 2017: 24,928,000 tonnes grading 2.21 g/t Au for a total of 1,774,000 oz Au | Gold 2.21 Grams per Tonne |
| Barrick Hemlo | 2016 | Proven + Probable Reserve | 25782000 | Barrick�s 4th Quarter and Year-End Mine Statistics and 2016 Mineral Reserves and Resources | Proven & probable reserves as of December 31, 2016: 25 782 000 tonnes grading 1.92 g/t Au for a total of 1 588 000 oz Au | |
| Barrick Hemlo | 2015 | Proven + Probable Reserve | 1016000 | Barrick�s 4th Quarter and Year-End Mine Statistics and 2015 Mineral Reserves and Resources | Proven & probable reserves as of December 31, 2015: 13,191,000 tonnes grading 2.16 g/t Au for a total of 917,000 oz Au | Gold 2.76 Grams per Tonne |
| Barrick Hemlo | 2014 | Measured + Indicated Resource | 36930000 | Barrick�s 4th Quarter and Year-End Mine Statistics and 2014 Mineral Reserves and Resources | Measured & Indicated reserves as of December 31, 2014: 36,930,000 tonnes grading 1.41 g/t Au for a total of 1,671,000 oz Au. | Gold 1.41 Grams per Tonne |
| Barrick Hemlo | 2014 | Proven + Probable Reserve | 12267000 | Barrick�s 4th Quarter and Year-End Mine Statistics and 2014 Mineral Reserves and Resources | Proven & probable reserves as of December 31, 2014: 12,267,000 tonnes grading 2.08 g/t Au for a total of 820,000 oz Au | Gold 2.08 Grams per Tonne |
| Barrick Hemlo | 2013 | Proven + Probable Reserve | 14112000 | OFR 6293 | Proven & probable reserves as of December 31, 2013: 14 112 000 tons grading 0.072 oz/ton Au for a total of 1 019 000 oz Au. Measured and indicated resources as of December 31, 2013: 58 253 000 tonsgrading 0.033 oz/ton Au for a total of 1 903 000 oz Au. | |
| Hemlo | 2012 | Measured Mineral Resource | 381000 | Canadian Mines Handbook 2013-14 p. 68 | 68,000 oz Au | Gold 0.178 Ounce per Ton |
| Hemlo | 2012 | Proven + Probable Reserve | 16424000 | Canadian Mines Handbook 2013-14 p. 68 | Proven & Probable, 1,150,000 oz Au | Gold 0.070 Ounce per Ton |
| Hemlo | 2012 | Indicated Mineral Resource | 55519000 | Canadian Mines Handbook 2013-14 p. 68 | 1,760,000 oz Au | Gold 0.032 Ounce per Ton |
| Hemlo | 2012 | Inferred Mineral Resource | 3126000 | Canadian Mines Handbook 2013-14 p. 68 | 373,000 oz Au | Gold 0.119 Ounce per Ton |
| Hemlo | 2011 | Inferred Mineral Resource | 2937000 | Canadian Mines Handbook 2012-13, p. 101 | 374,000 oz Au | Gold 0.127 Ounce per Ton |
| Hemlo | 2011 | Indicated Mineral Resource | 2735000 | Canadian Mines Handbook 2012-13, p. 101 | 190,000 oz Au | Gold 0.069 Ounce per Ton |
| Hemlo | 2011 | Measured Mineral Resource | 2000000 | Canadian Mines Handbook 2012-13, p. 101 | 220,000 oz Au | Gold 0.110 Ounce per Ton |
| Hemlo | 2011 | Proven + Probable Reserve | 16620000 | Canadian Mines Handbook 2012-13 p. 101 | Proven & Probable, 1,369,000 oz Au | Gold 0.069 Ounce per Ton |
| Hemlo | 2010 | Proven + Probable Reserve | 18388000 | Canadian Mines Handbook 2011-12, p. 98 | Proven & Probable, 1,362,000 oz Au | Gold 0.074 Ounce per Ton |
| Hemlo | 2010 | Inferred Mineral Resource | 1362000 | Canadian Mines Handbook 2011-12, p. 98 | 212,000 oz Au | Gold 0.156 Ounce per Ton |
| Hemlo | 2010 | Measured + Indicated Resource | 4184000 | Canadian Mines Handbook 2011-12, p. 98 | 299,000 oz Au | Gold 0.071 Ounce per Ton |
| Hemlo | 2009 | Measured + Indicated Resource | 2545000 | Canadian Mines Handbook 2010-11, p. 93 | 179,000 oz Au | Gold 0.070 Ounce per Ton |
| Hemlo | 2009 | Inferred Mineral Resource | 1036000 | Canadian Mines Handbook 2010-11, p. 93 | 155,000 oz Au | Gold 0.150 Ounce per Ton |
| Hemlo | 2009 | Proven + Probable Reserve | 17500000 | Canadian Mines Handbook 2010-11, p. 93 | Proven & Probable | Gold 0.076 Ounce per Ton |
| Hemlo | 2008 | Proven + Probable Reserve | 7075000 | Canadian Mines Handbook 2009-10, p. 87 | Proven & Probable | Gold 0.08 Ounce per Ton |
| Hemlo | 2007 | Proven + Probable Reserve | 7419000 | Canadian Mines Handbook 2008-09, p. 86 | Proven & Probable | Gold 0.085 Ounce per Ton |
| Hemlo | 2006 | Proven + Probable Reserve | 9046000 | Canadian Mines Handbook 2007-08, p. 87 | Proven & Probable | Gold 0.079 Ounce per Ton |
| Hemlo | 2005 | Proven + Probable Reserve | 10382000 | Canadian Mines Handbook 2006-07, p. 68 | Proven & Probable | Gold 0.091 Ounce per Ton |
| Hemlo | 2004 | Proven + Probable Reserve | 13946000 | Canadian Mines Handbook 2005-06, p. 65 | Proven & Probable | Gold 0.090 Ounce per Ton |
| Hemlo | 2003 | Proven + Probable Reserve | 17557000 | Canadian Mines Handbook 2004-05, p. 68 | Proven & Probable | Gold 0.099 Ounce per Ton |
| Hemlo | 2002 | Proven + Probable Reserve | 19726000 | Canadian Mines Handbook 2003-04, p. 69 | Proven & Probable | Gold 0.107 Ounce per Ton |
| Hemlo (Williams & David Bell Mines) | 2001 | Proven + Probable Reserve | 21788000 | Canadian Mines Handbook 2002-03, p. 55 | Gold 0.141 Ounce per Ton | |
| Williams Mine | 2000 | Proven + Probable Reserve | 25079000 | Canadian Mines Handbook 2001-02, p. 185 | Proven & Probable | Gold 0.141 Ounce per Ton |
| Williams Mine | 1999 | Proven + Probable Reserve | 27992000 | Canadian Mines Handbook 2000-01, p. 200 | Proven & Probable | |
| Williams Mine | 1998 | Proven + Probable Reserve | 14976000 | Canadian Mines Handbook 1999-2000, p. 212 | Proven & Probable | Gold 0.148 Ounce per Ton |
| Williams Mine | 1997 | Proven + Probable Reserve | 16463000 | Canadian Mines Handbook 1998-99, p. 229 | Proven & Probable | Gold 0.15 Ounce per Ton |
| Williams Mine | 1996 | Proven + Probable Reserve | 17724500 | Canadian Mines Handbook 1997-98, p. 228 | Proven & Probable | Gold 0.146 Ounce per Ton |
| Williams Mine | 1995 | Proven + Probable Reserve | 18382500 | Canadian Mines Handbook 1996-97, p. 214 | Proven & Probable | Gold 0.15 Ounce per Ton |
| Williams Mine | 1994 | Proven + Probable Reserve | 17025000 | Canadian Mines Handbook 1995-96, p. 194 | Proven & Probable | Gold 0.166 Ounce per Ton |
| Williams Mine | 1993 | Proven + Probable Reserve | 17500000 | Canadian Mines Handbook 1994-95, p. 194 | Proven & Probable | Gold 0.170 Ounce per Ton |
| Williams Mine | 1992 | Proven + Probable Reserve | 17600000 | Canadian Mines Handbook 1993-94, p. 182 | Proven & Probable | Gold 0.174 Ounce per Ton |
| Williams Mine | 1991 | Proven + Probable Reserve | 37331000 | Canadian Mines Handbook 1991-92, p. 212 | Proven & Probable | Gold 0.171 Ounce per Ton |
| Williams Mine | 1990 | Proven + Probable Reserve | 36103000 | Canadian Mines Handbook 1990-91, p. 136 | Proven & Probable | Gold 0.176 Ounce per Ton |
| Page-Williams C Zone | 1987 | Proven + Probable Reserve | 1923000 | Canadian Mines Handbook 1988-89, p. 283 | Proven & Probable | Gold 0.11 Ounce per Ton |
| Page-Williams B Zone | 1987 | Proven + Probable Reserve | 1348318 | Canadian Mines Handbook 1988-89, p. 283 | Proven & Probable | Gold 0.217 Ounce per Ton |
| Page-Williams A Zone | 1987 | Proven + Probable Reserve | 2177000 | Canadian Mines Handbook 1988-89, p. 283 | Proven & Probable | Gold 0.203 Ounce per Ton |
| Page-Williams B Zone | 1986 | Probable | 29650000 | Canadian Mines Handbook 1987-88, p. 241 | Gold 0.20 Ounce per Ton | |
| Page-Williams B Zone | 1986 | Proven | 2120000 | Canadian Mines Handbook 1987-88, p. 241 | Gold 0.16 Ounce per Ton | |
| Page-Williams A Zone | 1986 | Proven | 2230000 | Canadian Mines Handbook 1987-88, p. 241 | Gold 0.18 Ounce per Ton | |
| Page-Williams A Zone | 1986 | Probable | 170000 | Canadian Mines Handbook 1987-88, p. 241 | Gold 0.23 Ounce per Ton | |
| Page-Williams C Zone | 1986 | Proven | 4300000 | Canadian Mines Handbook 1987-88, p. 241 | Gold 0.10 Ounce per Ton | |
| Page-Williams C Zone | 1986 | Probable | 1690000 | Canadian Mines Handbook 1987-88, p. 241 | Gold 0.10 Ounce per Ton | |
| Page-Williams A Zone | 1985 | Proven | 3300000 | Canadian Mines Handbook 1986-87, p. 238-9 | Avg. 0.181 oz/t Au | Gold 0.181 Ounce per Ton |
| Page-Williams C Zone | 1985 | Probable | 4300000 | Canadian Mines Handbook 1986-87, p. 239 | Gold 0.116 Ounce per Ton | |
| Page-Williams B Zone | 1985 | Probable | 44400000 | Canadian Mines Handbook 1986-87, p. 239 | Gold 0.188 Ounce per Ton |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 2023 | 1530000 |
Gold 141000 Ounces |
OFR6409, p.2 | 3.71 g/t Au |
| 2022 | 1340000 |
Gold 133000 Ounces |
Barrick 2022 Annual Report | 3.89 g/t Au |
| 2021 | 1237000 |
Gold 150000 Ounces |
OFR6383 p. 2 | 4.9 g/t Au |
| 2020 | 4200000 |
Gold 223000 Ounces |
OFR6373, p.2 | Average grade of 1.65 g/t Au for a total of 223,000 oz Au produce |
| 2019 | 5883000 |
Gold 213000 Ounces |
Barrick 2019 Q4 Summary of Operations | Total of 213,000 oz Au produced |
| 2018 | 3062000 |
Gold 171000 Ounces |
OFR6353 p. 2 | Average grade of 1.86 g/t Au for a total of 171,000 oz Au |
| 2017 | 3351000 |
Gold 196000 Ounces |
Barrick�s 2017 4th Quarter and Year-End Mine Statistics | Average grade of 1.96 g/t Au for a total of 196,000 oz Au |
| 2016 | 3408000 |
Gold 235000 Ounces |
Barrick�s 4th Quarter and Year-End Mine Statistics and 2016 Mineral Reserves and Resources | Average grade 2.28 g/t for a total of 235,000 oz Au |
| 2015 | 3120000 |
Gold 219000 Ounces |
Barrick�s 4th Quarter and Year-End Mine Statistics and 2015 Mineral Reserves and Resources | Average grade 2.30 g/t for a total of 219,000 oz Au |
| 2014 | 2916000 |
Gold 206000 Ounces |
Barrick�s 4th Quarter and Year-End Mine Statistics and 2014 Mineral Reserves and Resources | Average grade 2.34 g/t for a total of 206,000 oz Au |
| 2013 | 3428000 |
Gold 204000 Ounces |
OFR6293 p. 2 | average grade 0.06 oz/t for 204,000 oz Au recovered |
| 2012 | 3396000 |
Gold 206000 Ounces |
OFR6285 p. 2 | Avg. grade 0.065 oz/t Au for 206,000 oz Au recovered |
| 2011 | 3370000 |
Gold 227000 Ounces |
OFR6273 p. 2 | Avg. 0.071 oz/t Au for 227,000 oz Au recovered |
| 2010 | 3311000 |
Gold 242000 Ounces |
OFR6263 p. 2 | Avg. grade 0.077 oz/t Au for 242,000 oz Au recovered |
| 2009 | 2785000 |
Gold 275000 Ounces |
Canadian Mines Handbook 2010-11, p. 93; Barrick Q4 Year End Mine Stats 2009 | Avg. grade 0.100 oz/t Au for 275,000 oz Au recovered |
| 2008 | 2270021 |
Gold 175244 Ounces |
OFR6234 p. 1 | 175,244 oz Au recovered from 2,502,270 t at a grade of 2.31 g/t Au |
| 2007 | 2492710 |
Gold 265915 Ounces |
OFR6218 p. 1 | 265,915 oz Au recovered from 2,747,742 t at a grade of 3.01 g/t Au |
| 2006 | 2739072 |
Gold 314028 Ounces |
OFR6202 p. 1 | 314,028 oz Au recovered from 3,019,310 t at a grade of 3.44 g/t Au |
| 2005 | 2848272 |
Gold 354884 Ounces |
OFR6182 p.1 | 354,884 oz Au recovered from 3,129,683 t at a grade of 3.75 g/t Au |
| 2004 | 2978991 |
Gold 382599 Ounces |
OFR6148 p. 1 | 382,599 oz Au recovered from 3,283,776 to at a grade of 3.86 g/t Au |
| 2003 | 2900108 |
Gold 440357 Ounces |
OFR6129 p. 1 | 440,357 oz Au recovered from 3,196,822 t at a grade of 4.28 g/t Au |
| 2002 | 2746955 |
Gold 427600 Ounces |
OFR6112 p. 1 | 427,600 oz Au recovered from 3,028,000 t at a grade of 3.13 g/t Au |
| 2001 | 3038000 |
Gold 446000 Ounces |
Teck Cominco 2001 Annual Report | 446,000 oz Au from 3,038,000 tonnes of ore |
| 2000 | 2497000 |
Gold 414200 Ounces |
OFR6049 p. 4 | 414,000 oz Au from 2,497,000 tonnes of ore |
| 1999 | 2432248 |
Gold 423645 Ounces |
OFR6005 | 423,645 oz Au from 2,432,248 tonnes of ore, at a head grade of 0.183 oz/t Au |
| 1998 | 2238932 |
Gold 390440 Ounces |
OFR5989 p. 3 | 390,440 oz Au from 2,468,000 t of ore, at an average feed grade of 0.167 oz/t Au |
| 1997 | 2185862 |
Gold 402195 Ounces |
OFR5971 p. 3 | 402,195 oz Au from 2,409,500 t ore, at an average feed grade of 0.176 oz/t Au |
| 1996 | 2125558 |
Gold 411038 Ounces |
OFR5958 p. 4-2 | 411,038 oz Au from 2,343,027 t milled at a grade of 0.184 oz/t Au |
| 1995 | 2146241 |
Gold 405122 Ounces |
OFR5943 | 405,122 oz Au from 2,365,826 t milled at a grade of 0.18 oz/t Au p. 79 |
| 1994 | 2088857 |
Gold 446850 Ounces |
OFR5921 p. 72 | 446,850 oz Au from 1,107,348 t milled at a grade of 13.079 g/t Au |
| 1993 | 2104386 |
Gold 492251 Ounces |
OFR5892 p. 81 | 492,251 oz Au from 2,319,688 t milled at a grade of 0.223 oz/t Au |
| 1992 | 2086249 |
Gold 496920 Ounces |
MP161 | 496,920 oz Au from 2,299,696 t milled at a grade of 0.226 oz/t Au |
| 1991 | 1982520 |
Gold 518703 Ounces |
MP158 p. 125 | 518,703 oz Au from 2,185,3541 milled at a grade of 0.25 oz/t Au |
| 1990 | 2514010 |
Gold 594128 Ounces |
Canadian Mines Handbook 1991-92, p. 212 | |
| 1989 | 2119246 |
Gold 494127 Ounces |
Canadian Mines Handbook 1990-91, p. 136 | |
| 1988 | 1699266 |
Gold 378827 Ounces |
Canadian Mines Handbook 1990-91, p. 136 | |
| 1987 | 1348318 |
Gold 280950 Ounces |
Canadian Mines Handbook 1990-91, p. 136 | |
| 1986 | 1356000 |
Gold 233162 Ounces |
Canadian Mines Handbook 1987-88, p. 241 | Avg grade 0.172 oz/t Au |
| 1985 | 149000 |
Gold 10369 Ounces |
Canadian Mines Handbook 1986-87, p. 238 | Production only in December 1985 |
Journal - Canadian Mining Journal May 1985
Publication Number: CanMinJ Page: 42-58 Date: 1985
Author:
Publisher Name:
Location:
Mono - Report of Activities 2013, Resident Geologist Program, Thunder Bay South Regional Resident Geologist Report: Thunder Bay South District
Publication Number: OFR6293 Date: 2014
Author: Puumala M.A., Campbell D.A., Tuomi R.D., Debicki R.L., Wilson A.C., Moses P., Brunelle M.R.
Publisher Name: Ontario Geological Survey
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:
Mono - Report of Activities 2023, Resident Geologist Program, Thunder Bay South Regional Resident Geologist Report: Thunder Bay South District
Publication Number: OFR6409 Page: 2 Date: 2024
Author: Campbell D.A., Jonsson J.R.B., Meyer G., Pettigrew T.K., Kurcinka C.E., Sabiri N., Swiercz J.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of the Hemlo area, District of Thunder Bay
Publication Number: R217 Page: 59 Date: 1982
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
Compend - Report of activities, 1983, Regional and Resident Geologists
Publication Number: MP117 Page: 72, 74-75 Date: 1984
Author: Kustra C.R.
Publisher Name: Ontario Geological Survey
Location:
Book - Geology and Gold Deposits of the Hemlo Area
Publication Number: Date: 1991
Author: Muir, T.L., Schnieders, B.R., Smyk, M.C.
Publisher Name: GAC-MAC-SEG Field Trip Guidebook
Location:
MonoMap - Precambrian Geology, Hemlo Gold Deposit Area
Publication Number: R289 Date: 1997
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of the Hemlo Gold Deposit Area
Publication Number: OFR5877 Date: 1993
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
File - Mineral Deposit Files Thunder Bay
Publication Number: Date:
Author:
Publisher Name:
Location:
Map - Hemlo, Thunder Bay District
Publication Number: M2452 Scale: 1:31,680 Date: 1981
Author: Muir T.L., Lafleur J.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological Compilation of the Eastern Half of the Schreiber-Hemlo Greenstone Belt
Publication Number: M2614 Scale: 1:50,000 Date: 2000
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
Map - Structural geology of the Hemlo gold deposit area [south-central sheet]
Publication Number: OFM0182C Scale: 1:5,000 Date: 1991
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
Map - Lithology of the Hemlo gold deposit area [south-central sheet]
Publication Number: OFM0181C Scale: 1:5,000 Date: 1991
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
Map - Lithology, Hemlo Gold Deposit Area, South-Central Part
Publication Number: P3239 Scale: 1:5,000 Date: 1993
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
Map - Structural Geology, Hemlo Gold Deposit Area, South-Central Part
Publication Number: P3243 Scale: 1:5,000 Date: 1993
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
Map - Hemlo Gold Deposit Area, Structural Geology, South-Central Part
Publication Number: M2608 Scale: 1:5,000 Date: 1997
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
Map - Hemlo Gold Deposit Area, Lithology, South-Central Part
Publication Number: M2604 Scale: 1:5,000 Date: 1997
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
Map - Generalized Lithotectonic Units, Hemlo Gold Deposit Area
Publication Number: M2629-REV Scale: 1:20,000 Date: 1997
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, Hemlo area (northern half), District of Thunder Bay
Publication Number: P2304 Scale: 1:15,840 Date: 1979
Author: Muir T.L., Lafleur J.
Publisher Name: Ontario Geological Survey
Location:
Map - Structural Geology, Hemlo Gold Deposit Area, North-Central Part
Publication Number: P3242 Scale: 1:5,000 Date: 1993
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
Map - Lithology, Hemlo Gold Deposit Area, North-Central Part
Publication Number: P3238 Scale: 1:5,000 Date: 1993
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
Map - Hemlo Gold Deposit Area, Lithology, North-Central Part
Publication Number: M2603 Scale: 1:5,000 Date: 1997
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
Map - Hemlo Gold Deposit Area, Structural Geology, North-Central Part
Publication Number: M2607 Scale: 1:5,000 Date: 1997
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office