Occurrence Details


Occurrence Number:
115I 107
Occurrence Name:
Nucleus
Occurrence Type:
Hard-rock
Status:
Deposit
Date printed:
8/9/2022 3:16:53 PM

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General Information
Capsule
Work History
Assessment Reports
References
Resource / Reserve
Drill Core

General Information

Primary Commodities: copper, gold, silver
Secondary Commodities: molybdenum, tungsten
Aliases: Golden Revenue, Freegold
Deposit Type(s): Porphyry Cu-Mo-Au
Location(s): 62°20'3" N - -137°20'9" W
NTS Mapsheet(s): 115I06
Location Comments: Coordinates provided by Triumph Gold in 2020.
Hand Samples Available: Yes
Last Reviewed:

Capsule

Work History

Staked as Revenue cl 1-22 (Y24021) by Yukon Revenue Mines Ltd in 1968 and optioned in 1970 by Kaiser Resources Ltd, which carried out bulldozer trenching and drilling of 5 percussion holes (428 m) and 4 core holes (639 m).

In 1980, the Nat Joint Venture (Armco Mineral Exploration Ltd. and Chevron Canada Ltd.) tied on Nucleus cl 1-34 (YA51189) to the northwest and carried out grid soil geochemical sampling, prospecting and geological mapping from 1980-1982; staked Nucleus cl 35-50 (YA60256) in 1981; magnetometer surveying in 1981; bulldozer trenching, geochemical sampling and geological mapping in 1983-1984; and drilled 3 holes (315.2 m) in 1984. The Joint Venture staked Nucleus cl 51-141 (YA82735) to the north and west of the existing claim block in 1984; ERL cl 1-268 (YA92344) to the south in 1985; and ERL cl 269-274 (YA93132) and MEC cl 1-8 (YA93679) also to the south in 1985. Geological mapping, prospecting and geochemical soil sampling was carried out during 1985 on the newly staked claims. In 1986, the joint venture carried out additional bulldozer trenching, geological mapping and geochemical sampling on the main showing.

The Big Creek Joint Venture optioned the Nucleus property in 1987 and carried out rotary drilling of 35 shallow holes (1 312 m) to prove up near surface reserves suitable for test heap leach mining. In 1989, Big Creek purchased Rexford's and Chevron's interests and carried out bulldozer trenching and drilled 6 holes (591.9 m) that year and a further five holes (738.5 m) in 1991.

In 1995, Nucleus cl 1-40 (YA51189) were sold to Amarc Resources Ltd., which sold them to W4 Joint Venture in 1997. In 1999, ATAC Resources purchased the claims from the joint venture group, optioned the adjoining Revenue claims from YKR International Resources Ltd. (formerly Yukon Revenue) and tied on Nuc cl 1-7 (YC09279) to the north later in 1999, consolidating a total of 151 claims in the area to form a single contiguous block, which they named the Golden Revenue property.

ATAC carried out geological mapping, prospecting, soil sampling, magnetometer surveying and hand trenching during 1999 and linecutting, road building and excavator trenching in 2000. In 2001, the company carried out IP and HLEM geophysical surveying, minor prospecting, excavator trenching and drilled 6 holes (1 202 m), all in the vicinity of the Nucleus zone.

In 2004, Yale Resources Ltd. optioned the Golden Revenue property and drilled 14 diamond drill holes (1 832 m) later that year, before dropping its option without earning any interest in 2005.

In 2006, Northern Freegold Resources Ltd. optioned the Nucleus claims from ATAC Resources. The company spent most of 2006 acquiring and consolidating a large land package measuring in excess of 166 square kilometers of claims, which they named the Freegold Mountain project. The company carried out prospecting, geologically mapping and sampling programs and flew extensive airborne geophysical surveys. The company also drilled 26 diamond drill holes (4 798 m) and completed extensive rotary blast drilling on the Nucleus zone. In 2007, the company drilled 27 diamond drill holes (6 313 m ) over 3 months on the Nucleus zone. In 2008, Northern Freegold drilled 53 diamond drill holes (13 287 m) on the Nucleus zone.

In 2009, the company announced a initial National Instrument (NI) 43-101 mineral resource estimate for the Nucleus zone and drilled 44 holes for a total of 10 440 m in the Nucleus zone, as well as 1 241 m of rotary air blast drilling in 21 holes. They also performed stream sediment sampling, geological mapping, and ground magnetic and radiometric surveys.

An updated resource estimate was released for the Freegold Mountain project in a report by Campbell, Armitage and Barnes, dated April 19, 2010. Northern Freegold also drilled 11 diamond drill holes (3 105.92 m), 6 RC holes (862.59 m) and carried out rock and soil geochemistry and a TITAN IP ground survey.

A revised resource estimate on the Nucleus deposit was released in a report by GeoVector Management dated April 07, 2011. Work in 2012 at Nucleus consisted of 5 diamond drill holes (2 452 m) and preliminary metallurgical testing.

An updated resource estimate was released for both Nucleus and Revenue deposits by Northern Freegold in a February 22, 2013 report by GeoVector Management.

Northern Freegold then released the technical report for the Preliminary Economic Assessmment (NI 43-101 compliant) for both the Nucleus and Revenue deposits on April 09 2013. The resource estimate is based on a conceptual optimized open pit mining plan.

A revised resource estimate was released by Northern Freegold in a February 28, 2015 report by GeoVector Management Inc.

Triumph Gold acquired Northern Freegold Resources in 2015 and carried out a re-logging program in 2016 at Nucleus. Triumph carried out diamond drilling (16 holes, 5 258 m) and rock geochemistry in 2017 and 21 diamond drill holes (4 159 m) and rock sampling in 2018. In 2020, Triumph released an updated, NI 43-101 compliant resource estimate on March 27, 2020 prepared by R. Sim and B. Davis.

Regional & Property Geology

The occurrence is partly underlain by Yukon-Tanana Terrane (YTT). The rocks of the YTT in this region consist of Early Mississippian metamorphic rocks separated into meta-sedimentary and meta-igneous suites. The meta-sedimentary suite consists of micaceous quartz-feldspar gneiss, schist and quartzite. The meta-igneous package is composed of biotite-hornblende feldspar gneiss and coarse-grained granodiorite orthogneiss with lesser amphibolite.

The YTT basement rocks are cut by numerous plutonic and volcanic events from the Mesozoic (Allan & Friend, 2018), including:
1. Early Jurassic Long Lake monzonite to syenite plutonic suites;
2. Mid-Cretaceous Mount Nansen Suite andesite to diorite;
3. Mid-Cretaceous Whitehorse granodiorite, quartz monzonite and granite;
4. Late Cretaceous Casino quartz monzonite;
5. Late Cretaceous Prospector Mountain syenite; and,
6. Quartz feldspar and feldspar hornblende porphyry dykes and plugs.

The Nucleus deposit is hosted in the tightly-folded, sheared and brecciated Paleozoic schists and gneisses of the YTT basement rock Snowcap assemblage. Cutting them are east trending Late Cretaceous quartz-feldspar porphyry dykes. The dykes are directly associated with increased mineralization at the Nucleus deposit and are thought to represent rocks which have infilled zones of dilation and/or tension gashes resulting from brittle tectonism. The structural system containing the Nucleus deposit is dominated mainly by the steeply dipping, northwest-trending North and South faults (Davis & Sim, 2020).

Mineralization & Results

The Nucleus gold-silver-copper deposit consists of polyphase quartz-chalcopyrite-pyrite-arsenopyrite veins, infill breccia and semi- to massive-sulphide lenses consistent with multiple phases of skarn and epithermal gold mineralization. The host schists and gneisses (of greenschist origin) have been overprinted by dominantly phyllic alteration (especially near veins and structures) with local pervasive actinolite skarn. In places, the skarns have been replaced with sulphides. Mineralization at the contact between the gneisses and the granite is gold ± copper bearing pyrrhotite ± chalcopyrite ± pyrite lenses. (Davis & Sim, 2020).

The 1970 drilling cut minor chalcopyrite and traces of molybdenite associated with weakly pyritized quartz veining. The best intersection was 0.074% Cu from 30 to 67 m in percussion hole 70-9.

The Nat Joint Venture work was directed toward the gold potential of the property. The bulldozer trenching explored a 400 x 400 m area with erratic anomalous gold soil values and associated anomalous values in arsenic, copper, tungsten and silver. Minor sulphides, including tetrahedrite, are associated with the dykes.

The 1988 drilling identified a high grade zone with reserves of 211 925 tonnes grading 3.16 g/t Au (uncut) with a 4.6:1 waste: ore ratio. One drill hole intersected 34.9 g/t Au over 13.7 m, but this was not confirmed by nearby drill holes. This zone (formerly Anomaly #2) comprises the core of what is now referred to as the Nucleus zone.

The 1989 surface work showed that the highest grades are associated with gouge zones and quartz stockworks adjacent to porphyry dykes. Multi-element analysis showed a strong correlation between gold, silver, arsenic and bismuth. The best trench results came from the south side of the deposit, where samples of quartz-veined breccia and gouge in a series of NNW faults averaged 1.90 g/t Au across 20 m. The 1989 drilling confirmed the presence of a well defined, gold-bearing leached cap 60-100 m thick. Two holes that extended beneath the cap discovered a supergene sulphide zone containing copper and gold. Hole 89-1 intersected 38 m of supergene sulphide mineralization that averaged 0.87 g/t Au and 0.52% Cu.

Drilling in 1991 tested the Nucleus zone at depth below the leached cap. Hole DN91-2 returned 1.01 g/t Au and 0.04% Cu over 117 m in the leached cap and 0.86 g/t Au, 0.24% Cu over 28.7 m in the underlying supergene zone (AR 092995).

Interpretation of the 2001 drill data appears to indicate that gold distribution within the stockwork system comprising the core of the Nucleus zone is primarily controlled by proximity to a series of en echelon, moderately east dipping quartz-feldspar porphyry dykes and that most of the gold occurs in a series of broad bands approximately paralleling the trend of the dykes. The best intersection grades 1.32 g/t Au over 57.76 m from Hole DN01-03, which tested an area of chargeability highs identified northwest of the mineralized area previously outlined by trenching.

Trenching in 2001 tested targets on the periphery of the Nucleus zone and exposed an area, located 300 m south of the most recent drilling, which produced high grade assays from quartz veins. Channel sampling of the northernmost trench returned 8.89 g/t Au over 3.3 m, while sampling of a second trench located 120 m further south returned 3.63 g/t Au over 9.5 m (AR 094539).

Northern Freegold's 2006 through 2008 diamond drill programs were aimed at identifying a low grade bulk tonnage near surface gold target. In mid-2008 diamond drilling encountered high grade gold bearing ± chalcopyrite ± pyrite veins and gold bearing infill in breccias and gold -rich ± copper skarns that appear to follow the east-west orientation of the foliation within the metasediments. In addition, the company identified a set of gold bearing quartz + chalcopyrite +/- pyrite veins that also trend east-west in addition to the traditionally targeted north-south trending vein system.

Step-out drilling to the south of the calculated resource area in 2009 intersected 25.38 m of 1.25 g/t Au (DDH GRD-128) (Campbell et al., 2010).

Drilling in 2010 intersected porphyry style mineralization with long zones of copper mineralization that returned significant intervals of 0.86 g/t Au, 1.64 g/t Ag and 0.02% Cu over 204.6 m, including 29.6 m of 0.19% Cu in GRD10-64, and 0.12 g/t Au, 1.13 g/t Ag and 0.1% Cu over 81.03 m, including 15.0 m of 0.41 g/t Au, 2.24 g/t Ag and 0.2% Cu (AR 095374).

Results of the 2012 drilling program at Nucleus intersected high grade gold mineralization where moderately south dipping stratabound sulphides hosted in biotite schist are crosscut by feldspar porphyry dykes, breccia zones and shear zones. Drill holes intersected significant intervals of up to 0.95 g/t Au, 4.91 g/t Ag, and 0.26% Cu over 35.3 m in GRD12-175 and 0.4 g/t Au, 0.99 g/t Ag and 0.26% Cu over 45.55 m in GRD12-176 (Triumph Gold, MD&A, 26 Nov/2012).

The most significant intercepts encountered in 2017 drilling are from N17-10, which graded 2.09 g/t Au over 1.53 m within a larger zone grading 0.567 g/t Au over 21.53 m (Triumph Gold, MD&A, 27 Apr/2018). Further drilling by Triumph in 2019 intersected up significant intervals, including: 19.8 g/t Au over 0.84 m in N18-06; 15.93 g/t Au, 5.0 g/t Ag and 0.551% Cu over 1.0 m in N18-17; 13.67 g/t Au, 10.0 g/t Ag and 0.542% Cu over 1.67 m in N18-04; and 9.13 g/t Au over 2.0 m in N18-16 (Triumph Gold, MD&A, 23 Apr/2019). 

Work History

Date Work Type Comment
9/4/2009 Studies Fonseca and Giroux, 2009. Nucleus and Tinta zones.
4/9/2013 Studies Geovector Management Inc, April 2013. Report includes both Nucleus and Revenue (Minfile 115I 042) deposits.
4/7/2011 Studies GeoVector Management, Armitage and Campbell, April 07 2011. Nucleus only.
4/19/2010 Studies Campbell, Armitage and Barnes, April 19 2010. Nucleus deposit only.
2/22/2013 Studies GeoVector Management Inc, Feb 22 2013. Nucleus and Revenue (Minfile 115I 042) deposits.
12/31/2009 Drilling Forty-four holes, 10,400 m.
12/31/2009 Drilling Twenty-one holes, 1,241 m.
12/31/2009 Geochemistry
12/31/2009 Ground Geophysics Also radiometric surve.
12/31/2008 Drilling Fifty-three holes, 13,287 m. Drill logs for two holes filed for assessment.
12/31/2007 Drilling Twenty-seven holes, 6,313 m. Drill logs for two holes filed for assessment.
12/31/2006 Airborne Geophysics Company flew its entire land package.
12/31/2006 Drilling Twenty-six holes, 4,798 m. No drill logs were filed.
12/31/2006 Pre-existing Data Company compiled all previous data, consolidated claims into large land package.
12/31/2004 Drilling Fourteen holes, 1,832 m. Assessment report pending, drill statistics derived from company press releases.
12/31/2001 Drilling Six holes, 1,202 m.
12/31/2001 Ground Geophysics Also HLEM survey.
12/31/2001 Trenching
12/31/2001 Other
12/31/2000 Trenching
12/31/2000 Other
12/31/2000 Development, Surface
12/31/1999 Geology
12/31/1999 Geochemistry
12/31/1999 Ground Geophysics Also HLEM survey.
12/31/1999 Trenching
12/31/1999 Other
12/31/1991 Drilling Five holes, 738.5 m. Continuation of 1989 drill program. Work carried out by Big Creek.
12/31/1989 Drilling Six holes, 595.4 m.
12/31/1989 Trenching
12/31/1988 Drilling Thirty-five holes, 1,312 m.
12/31/1987 Trenching
12/31/1985 Geochemistry
12/31/1985 Trenching 1300 m of excavator trenching.
12/31/1984 Drilling Three holes, 312 m.
12/31/1984 Trenching
12/31/1983 Trenching
12/31/1982 Geology
12/31/1982 Geochemistry
12/31/1982 Other
12/31/1981 Geology
12/31/1981 Geochemistry
12/31/1981 Ground Geophysics
12/31/1981 Other
12/31/1980 Geology
12/31/1980 Geochemistry
12/31/1980 Other
12/31/1970 Drilling Four holes, 639 m.
12/31/1970 Drilling Five holes, 428 m.
12/31/1970 Trenching
12/13/2020 Studies Updated resource estimate prepared by R. Sim and B. Davis, March 27, 2020.
12/13/2018 Geochemistry Grab sampling.
12/13/2018 Drilling Twenty-one holes, 4159 m.
12/13/2017 Geochemistry Grab sampling.
12/13/2017 Drilling Sixteen holes, 5258 m.
12/13/2016 Geochemistry
12/13/2016 Other Core relogging program.
12/13/2015 Studies Updated resource estimate. GeoVector Management Inc, Feb 28, 2015.
12/13/2012 Drilling Five holes, 2452 m.
12/13/2012 Lab Work/Physical Studies
12/13/2010 Geochemistry Grab sampling.
12/13/2010 Drilling Eleven holes, 3105.2 m.
12/13/2010 Geochemistry
12/13/2010 Drilling Six holes, 862.59 m.
12/13/2010 Ground Geophysics TITAN survey.
12/13/2010 Geochemistry

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
095374 2010 2010 Drilling Assessment Report on the REVENUE and NUCLEUS Properties, Free Gold Mountain Project, Yukon Diamond Drilling, Reverse Circulation Drilling, Drill Core Geochemistry, Drill Cuttings Geochemistry, Rock Geochemistry, Soil Geochemistry, IP Ground Geophysics 11 3015.92
095250 2009 2009 Drilling Report on the Nucleus Property with Assessment Applied to the Caribou Creek Claims, Yukon Diamond Drilling, Rotary Drilling, Silt Geochemistry, Regional Bedrock Mapping Geology 43 1241.36
095151 2009 2009 Drilling Assessment Report on the NUCLEUS Property-FREEGOLD MOUNTAIN Project Diamond Drilling, Rotary Drilling, Drill Core Geochemistry, Drill Cuttings Geochemistry 43 10430.88
094745 2006 2006 Geophysical Assessment Report on the Freegold Mountain Property Electromagnetic Airborne Geophysics, Magnetic Airborne Geophysics
094539 2004 Diamond Drilling at the Golden Revenue Property Big Creek, Nucleus, and Revenue Claim Blocks Diamond Drilling, Drill Core Geochemistry 14 1832
094256 2001 Diamond Drilling, Excavator Trenching, and Geophysical Surveys on the Golden Revenue Property Diamond Drilling, Drill Core Geochemistry, IP Ground Geophysics, Prospecting Other, Mechanical Trenching 6 1202
094102 1999 Geological Mapping, Prospecting, Soil Geochemistry, Hand Trenching, and Ground Magnetic Surveys on the Golden Revenue Property Soil Geochemistry, Detailed Bedrock Mapping Geology, Magnetics Ground Geophysics, Prospecting Other, Hand Trenching
092831 1989 Nucleus Property 1989 Final Report Big Creek Area Diamond Drilling, Rock Geochemistry, Soil Geochemistry, Mechanical Trenching 6 591.90
092703 1988 Report on Drilling and Trenching Program Nucleus Property All Weather Road Development, Surface, Rotary Drilling
092131 1987 Report on Trenching Program and Geophysical Survey Revenue Property Revenue Creek Rock Geochemistry, Soil Geochemistry, EM Ground Geophysics, Magnetics Ground Geophysics, Mechanical Trenching
091882 1986 Report on Bulldozer and Excavator Trenching Done at Nat Joint Venture's Nucleus 1-141 Claims Soil Geochemistry, Bedrock Mapping Geology, Mechanical Trenching
091804 1985 Geological and Geochemical Report on the NUCLEUS Property Rock Geochemistry, Soil Geochemistry, Bedrock Mapping Geology, Property Evaluation Other, Prospecting Other, Mechanical Trenching
091600 1984 Geological, Geochemical, and Geophysical Report for Bulldozer Trenching and Diamond Drilling Program at Nat Joint Venture's Nucleus 1-141 All Weather Road Development, Surface, Diamond Drilling, Soil Geochemistry, EM Ground Geophysics, Line Cutting Other, Mechanical Trenching 3 315.20
062183 1983 Preliminary Evaluation Report on the Revenue Creek Property Preliminary Economic Assessment Studies
091439 1982 Nat Joint Venture Geological, and Geochemical Report Nucleus 1-50 Claims Rock Geochemistry, Soil Geochemistry, Detailed Bedrock Mapping Geology
090973 1981 Nat Joint Venture Geological, Geochemical, and Geophysical Report Nucleus 1-50 Claims Soil Geochemistry, Detailed Bedrock Mapping Geology, Magnetics Ground Geophysics, Line Cutting Other, Data Compilation Pre-existing Data
090739 1980 Geochemical and Geological Report Nat Joint Venture Nucleus 1-34 Claims Rock Geochemistry, Silt Geochemistry, Soil Geochemistry, Regional Bedrock Mapping Geology, Prospecting Other
090087 1975 Geological Mapping, Geochemical and Magnetometer Surveys - Big Creek West, Big Creek East, Bow Creek Properties Soil Geochemistry, Regional Bedrock Mapping Geology, Magnetics Ground Geophysics, Line Cutting Other, Prospecting Other, Surveying Other
060200 1970 Report on the Geophysical and Geochemical Surveys Ram and Bow Claim Groups Electromagnetic Airborne Geophysics, Magnetic Airborne Geophysics, Rock Geochemistry, Soil Geochemistry

Related References

Number Title Page(s) Reference Type Document Type
ARMC008517 Fact sheet - Revenue-nucleus Cu+Au porphyry Property File Collection News Release
ARMC012155 Report on induced polarization survey, Carmacks area, Yukon - On behalf of Yukon Revenue Mines Ltd. Property File Collection Report
ARMC012153 1988 diamond drill core logs - 88G-01 to 88G-05 - Grum Property File Collection Drill Logs
ARMC016627 Land and disposition and mineral deposits chart - Freegold - Big Creek area Property File Collection Geoscience Map (General)
ARMC012156 Geological report on the Yukon Revenue property, Carmacks, Y.T. (formely Revenue Copper) Property File Collection Report
ARMC012157 Final report - Revenue Creek prospect Property File Collection Report
ARMC016626 Geology and mineralization chart - Freegold - Big Creek area Property File Collection Geoscience Map (Geological - Bedrock)
ARMC012158 Diamond drill logs - T-1, 68-1 to 68-5; 69-1 to 69-4 - Yukon Revenue property Property File Collection Drill Logs
090739 Geochemical and Geological Report Nat Joint Venture Nucleus 1-34 Claims Yukon Government: Energy, Mines and Resources Assessment Report
094539 Diamond Drilling at the Golden Revenue Property Big Creek, Nucleus, and Revenue Claim Blocks Yukon Government: Energy, Mines and Resources Assessment Report
094837 2007 Drilling Assessment on the NUCLEUS Zone-FREEGOLD MOUNTAIN Property Yukon Government: Energy, Mines and Resources Assessment Report
092131 Report on Trenching Program and Geophysical Survey Revenue Property Revenue Creek Yukon Government: Energy, Mines and Resources Assessment Report
091882 Report on Bulldozer and Excavator Trenching Done at Nat Joint Venture's Nucleus 1-141 Claims Yukon Government: Energy, Mines and Resources Assessment Report
092831 Nucleus Property 1989 Final Report Big Creek Area Yukon Government: Energy, Mines and Resources Assessment Report
091508 Nat Joint Venture Bulldozer Trenching Report Nucleus 1-50 Claims Yukon Government: Energy, Mines and Resources Assessment Report
092609 Report on Diamond Drilling, Trenching Program and Geophysical Survey Revenue Property Revenue Creek Yukon Government: Energy, Mines and Resources Assessment Report
094526 Geological and Geochemical Report on the Goal Net Claim Block Yukon Government: Energy, Mines and Resources Assessment Report
092995 Revenue-Nucleus Property, 1991 Final Report, Big Creek Area Yukon Government: Energy, Mines and Resources Assessment Report
094191 Linecutting, Road Building and Excavator Trenching on the Revenue Property Yukon Government: Energy, Mines and Resources Assessment Report
095065 2008 Drilling Assessment Report on the NUCLEUS Zone, FREEGOLD MOUNTAIN Property Yukon Government: Energy, Mines and Resources Assessment Report
091600 Geological, Geochemical, and Geophysical Report for Bulldozer Trenching and Diamond Drilling Program at Nat Joint Venture's Nucleus 1-141 Yukon Government: Energy, Mines and Resources Assessment Report
092703 Report on Drilling and Trenching Program Nucleus Property Yukon Government: Energy, Mines and Resources Assessment Report
094102 Geological Mapping, Prospecting, Soil Geochemistry, Hand Trenching, and Ground Magnetic Surveys on the Golden Revenue Property Yukon Government: Energy, Mines and Resources Assessment Report
090973 Nat Joint Venture Geological, Geochemical, and Geophysical Report Nucleus 1-50 Claims Yukon Government: Energy, Mines and Resources Assessment Report
091804 Geological and Geochemical Report on the NUCLEUS Property Yukon Government: Energy, Mines and Resources Assessment Report
097175 Drilling and Geochemical Report on the Freegold Mountain Project Yukon Government: Energy, Mines and Resources Assessment Report
094745 2006 Geophysical Assessment Report on the Freegold Mountain Property Yukon Government: Energy, Mines and Resources Assessment Report
095374 2010 Drilling Assessment Report on the REVENUE and NUCLEUS Properties, Free Gold Mountain Project, Yukon Yukon Government: Energy, Mines and Resources Assessment Report

Resource/Reserve

Year Zone Type Commodity Grade Tonnage Amount Reported Amount 43-101 Compliant Cut-off
2013 Nucleus- in pit (Open Pit) Indicated gold .607 g/t 52,474,000 31850000 Yes Yes pit-optimized
GeoVector Management Inc, PEA, April 09 2013. See Minfile 115I 042 for Inferred resource for Revenue deposit.
2013 Nucleus- in pit (Open Pit) Inferred gold .434 g/t 2,724,000 1182000 Yes Yes Pit-optimized
GeoVector Management Inc, PEA, April 09 2013. See Minfile 115I 042 for Inferred resource for Revenue deposit.
2013 Nucleus- in pit (Open Pit) Indicated silver .8 g/t 52,474,000 40745500 Yes Yes pit-optimized
GeoVector Management Inc, PEA, April 09 2013. See Minfile 115I 042 for Inferred resource for Revenue deposit.
2013 Nucleus- in pit (Open Pit) Inferred silver .79 g/t 2,724,000 2115000 Yes Yes pit optimized
GeoVector Management Inc, PEA, April 09 2013. See Minfile 115I 042 for Inferred resource for Revenue deposit.
2013 Nucleus- In pit (Open Pit) Indicated copper .052 % 52,474,000 27319000 Yes Yes pit optimized
GeoVector Management Inc, PEA, April 09 2013. See Minfile 115I 042 for Inferred resource for Revenue deposit.
2013 Nucleus- in pit (Open Pit) Inferred copper .011 % 2,724,000 329800 Yes Yes pit-optimized
GeoVector Management Inc, PEA, April 09 2013. See Minfile 115I 042 for Inferred resource for Revenue deposit.
2013 Nucleus (Open Pit) Indicated gold .567 g/t 71,904,900 40746000 Yes Yes 0.25g/t AuEq
GeoVector Management, Feb 2013. See Minfile 115I 042 for Inferred resource for Revenue deposit.
2013 Nucleus (Open Pit) Indicated silver .851 g/t 71,904,900 61205000 Yes Yes 0.25 AuEq
GeoVector Management, Feb 2013. See Minfile 115I 042 for Inferred resource for Revenue deposit.
2013 Nucleus (Open Pit) Indicated copper .06 % 71,904,900 40162990 Yes Yes 0.25g/t AuEq
GeoVector Management, Feb 2013. Error in Cu grade in table p.49. See Minfile 115I 042 for Inferred resource for Revenue deposit.
2013 Nucleus (Open Pit) Inferred gold .417 g/t 59,071,068 24659000 Yes Yes 0.25g/t AuEq
GeoVector Management, Feb 2013. Tonnage quoted from table (p. 49), not from text (p.3,46). See Minfile 115I 042 for Inferred resource for Revenue deposit.
2013 Nucleus (Open Pit) Inferred silver 1.5 g/t 59,071,068 89117600 Yes Yes 0.25g/t AuEq
GeoVector Management, Feb 2013. See Minfile 115I 042 for Inferred resource for Revenue deposit.
2013 Nucleus (Open Pit) Inferred silver 1.5 g/t 59,071,068 89117000 Yes Yes 0.25g/t AuEq
GeoVector Management, Feb 2013. Tonnage quoted from table (p. 49), not from text (p.3,46). See Minfile 115I 042 for Inferred resource for Revenue deposit.
2013 Nucleus (Open Pit) Inferred copper .04 % 59,071,068 22583950 Yes Yes 0.25g/t AuEq
GeoVector Management, Feb 2013. Tonnage quoted from table (p. 49), not from text (p.3,46). Error in Cu grade p. 49.
2011 Nucleus (Open Pit) Inferred gold .47 g/t 41,448,797 19499400 Yes Yes 0.4g/t AuEq
GeoVector Management, April 2011.
2011 Nucleus (Open Pit) Inferred silver .98 g/t 41,448,797 40646000 Yes Yes 0.4g/t AuEq
GeoVector Management, April 2011.
2011 Nucleus (Open Pit) Indicated gold .7 g/t 48,498,512 34076000 Yes Yes 0.4g/t AuEq
GeoVector Management, April 2011.
2011 Nucleus (Open Pit) Indicated silver .9 g/t 48,498,512 43497000 Yes Yes 0.4g/t AuEq
GeoVector Management, April 2011.
2011 Nucleus (Open Pit) Indicated copper .06 % 48,498,512 30732065 Yes Yes 0.4g/t AuEq
GeoVector Management, April 2011.
2011 Nucleus (Open Pit) Inferred copper .07 % 41,448,797 28134513 Yes Yes 0.4g/t AuEq
GeoVector Management, April 2011.
2010 Nucleus- total low and high grade (Open Pit) Inferred gold .87 g/t 35,820,842 31242100 Yes Yes 0.4g/t Au
Campbell, Armitage and Barnes, April 2010.
2009 Nucleus (Open Pit) Inferred gold .63 g/t 36,210,000 22798000 Yes Yes 0.4g/t Au
Fonseca and Giroux, 2009.
2009 NUCLEUS (OPEN PIT) Inferred gold .5 g/t 67,570,000 No Yes 0.3g/t Au
Estimate released July 27, 2009 on Northern Freegold's website.
1989 NUCLEUS (OPEN PIT) Historical Estimate gold 3.16 g/t 211,925 No No Unknown
Calculated using a 1 g/t cut-off grade.; Assessment Report #092703 by C.A. Main.

Drill core at YGS core library

Number Property Year Drilled Core Size Photos Data
N84-1 Nucleus 1984 HQ 0 4
N84-2 Nucleus 1984 HQ 0 4
N84-2A Nucleus 1984 HQ 0 0
N84-3 Nucleus 1984 HQ 0 4
D-70-5 Revenue 1970 NQ 0 1
D-70-6 Revenue 1970 NQ 0 1