Additional Silver Confirmed at Elizabeth Hill Drilling
Released
Released
Announcement PDF
1
WEST COASTSILVER LIMITED
ASX | WCE
ACN: 155 472 834
REGISTERED OFFICE
Level2,10 Ord Street
WestPerth, WA 6005
POBox1227, WestPerth
WA 6872, Australia
info@westcoastsilver.com.au
+61 8 9322 3383
westcoastsilver.com.au
ASX:WCE ANNOUNCEMENT
24 November 2025
Additional Silver Confirmed in the Elizabeth Hill
Diamond Drilling Program
• Core logging and observations continue to highlight silver mineralogy in near surface drill holes
• Silver minerals observed in 5 of the latest 8 drill holes (qualitatively verified by pXRF1
)
• Native silver logged above the historical Elizabeth Hill mine workings2
, transitioning to silver
mineralogy in near surface intersections
• Geometry refined: southerly plunging mineralisation appears to widen more than expected
above old mine
• Deeper holes indicate continuity at depth, suggesting a larger mineral system
• All samples dispatched; first assays expected mid-December, then progressively into January.
West Coast Silver Limited (ASX: WCE) (West Coast or the Company) is pleased to announce further
encouraging silver observations from its Phase 2 diamond program at the high-grade Elizabeth Hill Project in
Western Australia’s Pilbara region (Elizabeth Hill). This brings to a total of 13 holes drilled of which 9 holes have
visible silver mineralisation, confirmed by pXRF (refer to ASX Announcement dated 5 November 2025).
Shallow holes continue to show native silver immediately above the historical mine workings, transitioning to
silver-bearing minerals near surface (Figure 2). The two deepest holes drilled to date confirm that the
Elizabeth Hill mineral system continues at depth, extending below the historical mine and strengthening the
interpretation of a larger, vertically continuous system (Figures 2–9). All samples have been submitted; first assay
results are anticipated in mid-December.
West Coast’s current interpretation is that the southerly plunging shoot broadens upward, potentially forming a
wider, near-surface zone of silver mineralisation than previously modelled (Figure 2). The transition from native
silver at depth to silver minerals of varying composition toward surface likely reflects multiple mineralising
pulses or secondary enrichment processes. Further investigation of the mineralogy is underway.
Exploration efforts have now shifted to a near-mine aircore program testing for extensions of the Elizabeth Hill
system to the immediate north and south of the deposit’s surface expression.
1 Portable XRF readings are not a replacement for comprehensive laboratory analysis and only reflect elemental concentration at specific
points, rather than the entire rock. While they assist in geological interpretation, verifying metal presence and selecting which samples should
undergo full laboratory analysis, they offer only an approximate concentration.
2 Refer ASX announcement dated 5th November 2025.
Highlights
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Executive Director Bruce Garlick commented:
“This second phase of drilling has delivered exactly what we set out to test — more native silver near surface and
strong indications the system continues below the old workings. We’re building confidence that Elizabeth Hill
hosts a much larger and more vertically extensive silver system than previously recognised.”
Figure 1: Map showing the location of drill holes which contained native silver and silver and sulphide minerals and selected
historical drill results.
Note: Call out results in Figure 1 have previously been shown in ASX Announcement dated 15 October 2025.
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Long SECTION
The long section shows the location of all 2025 drilling and historical drilling, as well as the approximate position
of silver mineralisation in the phase 2 drilling program. Notably native silver mineralisation sits above the Elizabeth
Hill workings, then transitioning to different silver mineralogy, potentially sulphide and/or oxide mineralogy.
Figure 2: Long section showing the generalised position of native and silver mineralisation from the current drilling. The
position of silver mineralisation in drill holes 25WCDD016 and 25WCDD014 suggests that the northern boundary may extend
once assays have been received.
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CROSS SECTIONS AND LOCATION OF SILVER MINERALISATION
Drill Holes 25WCDD013 and 25WCDD014
Drill holes 25WCDD013 and 25WCDD014 targeted the prospective interaction of the Munni Munni fault and the
granite/ultramafic contact, as well as mineralisation at the top of the historical Elizabeth Hill mine sequence
(Figure 3). These drill holes were previously described in WCE ASX Announcement dated 5 November 2025.
Figure 3: Cross section showing the mineralisation outline and position of silver mineralisation in 25WCDD013 and
25WCDD014.
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Drill Holes 25WCDD016 and 25WCDD020
Drill holes 25WCDD016 and 25WCDD020 targeted the prospective interaction of the Munni Munni fault and
granite/ultramafic contact in the northern up plunge position of the Elizabeth Hill mineralisation. These drill
intersections represent the oxidised component of the deeper, native silver and silver sulphide mineralisation
(Figure 4).
Drill hole 25WCDD020 intersected primary or secondary silver minerals adjacent to oxidised carbonate veins at
8.45m and silver sulphide minerals <1mm in length adjacent to carbonate veins at 27.48m, as confirmed by pXRF.
Minor silver sulphide mineralisation is associated with galena and sphalerite in a brecciated zone with quartz
veining between 39.56m and 39.62m.
Drill hole 25WCDD016 intersected minor silver mineralisation associated with iron oxide minerals in a carbonate
matrix and was previously described in WCE ASX Announcement dated 5 November 2025.
Figure 4: Cross section with historical drilling and recently completed drill holes 25WCDD016 and 25WCDD020.
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Drill Holes 25WCDD017 and 25WCDD018
Drill holes 25WCDD017 and 25WCDD018 targeted the prospective ultramafic rock and granite contact, as well as
the Munni Munni fault. (Figure 5). Drill hole 25WCDD017 was previously described in WCE ASX Announcement
dated 5 November 2025. Drill hole 25WCDD018 intersected silver mineralisation with galena and jarosite at
21.43m, as confirmed by pXRF.
Figure 5: Cross section with historical drilling and recently completed drill holes 25WCDD017 and 25WCDD018.
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Drill Holes 25WCDD019 and 25WCDD021
Drill holes 25WCDD019 and 25WCDD021 were targeted to intersect near surface mineralisation at the ultramafic
rock and granite contact where this contact is intersected by the subvertical Munni Munni fault (Figure 6).
Drill hole 25WCDD019 intersected silver mineralisation with 1% malachite in a 2.5cm thick vein with iron oxide
minerals at 6.44m. Silver mineralisation was also associated with dark oxidised veinlets of iron oxide and black
sulphide minerals and <2mm thick iron oxide and calcite veinlets from 9.22m to 9.63m.
No silver mineralisation was observed in 25WCDD021 with veining decreasing away from the ultramafic/granite
contact.
Figure 6: Cross section with historical drilling and recently completed drill holes 25WCDD019 and 25WCDD021.
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Drill Holes 25WCDD022 and 25WCDD024
Drill holes 25WCDD022 and 25WCDD024 were targeted to intersect the vertical ultramafic rock/granite contact
and the Munni Munni fault (Figure 7).
Drill hole 25WCDD022 intersected silver sulphide mineralisation or oxidised native silver at 54.95m and silver
mineralisation associated with sphalerite between 55.75m and 55.90m, as confirmed by pXRF.
Drill hole 25WCDD024 did not intersect any identifiable silver mineralisation and geochemical analyses are
required to identify if any mineralisation is present.
Figure 7: Cross section with historical drilling and recently completed drill holes 25WCDD022 and 25WCDD024.
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Drill Hole 25WCDD015
Drill hole 25WCDD015 intersected the Munni Munni fault and contact between ultramafic rock and granite (Figure
8). Drill hole 25WCDD015 was previously described in WCE ASX Announcement dated 5 November 2025.
Figure 8: Cross section with historical drilling and recently completed drill hole 25WCDD015.
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Drill Holes 25WCDD023 and 25WCDD025
Drill holes 25WCDD023 and 25WCDD025 were targeted to intersect the ultramafic rock and granite contact and
the Munni Munni fault below and to the south of the historical underground workings (Figure 9).
Drill hole 25WCDD025 intersected an extensive sheeted and stockwork vein system and silicified alteration zone
between 174.45m and 208.55m.
Drill hole 25WCDD023 intersected sheeted and stockwork veins of quartz and carbonate between 195.00m and
202.00m adjacent to the Munni Munni fault. Silicified alteration of granite was intersected between 204.00m and
217.00m.
Figure 9: Cross section with historical drilling and recently completed drill holes 25WCDD023 and 25WCDD025.
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Laboratory Testing
All drill core from the drilling program has been cut, and half core and quarter core samples have been dispatched
for laboratory analysis. The first analytical results are expected in mid-December and then progressively into
January 2026.
Result timeframes may vary pending on laboratory analysis requirements for further analysis of any over-grade
silver mineralisation.
Forward Work Plan
Further evaluation of tenement wide data sets will continue as part of the Company’s ongoing target generation
initiatives.
An aircore drilling program has commenced targeting several high priority targets, initially commencing on the
prospects immediately north and south of Elizabeth Hill.
About The Elizabeth Hill Project
Elizabeth Hill is historically one of Australia’s highest grade silver projects and has a proven production history
outlined below:
• High grades enabled low processing tonnes: 1.2Moz of silver was produced from just 16,830t of ore at
a head grade of 2,194g/t (70.5 oz/t Ag)3
.
• Previous mining operation ceased in 2000: because of low silver prices (US$5)4
.
• Simplistic historical processing technique: native silver was recovered via low-cost gravity separation
techniques.
• Untapped potential remains in ground with deposit open at depth and recent consolidation of land
package offers potential to discover more Elizabeth Hill style deposits.
• Tier 1 Mining Jurisdiction located on a mining lease with potential processing option at the nearby Radio
Hill site. Radio Hill is a third-party-owned processing facility; WCE has no current agreement in place.
Through the consolidation of the surrounding land packages into a single contiguous 180km2
package significant
exploration and growth potential exists both near mine and regionally. The land package holds a significant portion
of the Munni Munni fault system, and other fault systems subparallel to the Munni Munni fault system, which are
considered prospective for Elizabeth Hill look-a-like silver deposits.
3 WAMEX Annual Report,1 April 2014 to 31 March 2015, Elizabeth Hill Silver Project, Global Strategic Metals NL, p16
4 www.kitco.com/charts/silver
ASX:WCE ANNOUNCEMENT
24 November 2025
WEST COAST SILVER LIMITED ASX | WCE Page 12
Figure 10: Elizabeth Hill Project Tenement Location.
This ASX announcement has been authorised for release by the Board of Directors of West Coast Silver
Limited. For further information, please contact:
Bruce Garlick
Executive Director
West Coast Silver Limited
E: info@westcoastsilver.com.au
Competent Person Statement
The information in this announcement that relates to Exploration Results is based on information reviewed by Mr Max Nind who
is a Member of the Australian Institute of Geoscientists. Mr Nind is a consultant to West Coast Silver and a full-time employee
of ERM Australia Consultants Pty Ltd.
Mr Nind has sufficient experience that is relevant to the style of mineralisation and type of deposits under consideration, and
to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the Joint Ore Reserves
Committee (JORC) ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’, and a
Specialist under the VALMIN Code 2015 Edition of the ‘Australasian Code for Public Reporting of Technical Assessments and
Valuations of Mineral Assets’. Mr Nind consents to the inclusion in the announcement of the matters based on this information
and in the form and context in which it appears.
Forward-Looking Statements
Statements in this announcement which are not statements of historical facts, including but not limited to those relating to the
proposed transaction, are forward-looking statements. These statements instead represent management’s current
expectations, estimates and projections regarding future events. Although management believes the expectations reflected in
such forward-looking statements are reasonable, forward-looking statements are based on the opinions, assumptions and
estimates of management at the date the statements are made and are subject to a variety of risks and uncertainties and other
factors that could cause actual events or results to differ materially from those projected in the forward-looking statements.
Accordingly, investors are cautioned not to place undue reliance on such statements.
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Appendix 1: Drill hole Collar Details
Drill Hole ID Easting (m) Northing (m) RL (mASL) Azimuth (°) Dip (°) Drilled Depth(m)
25WCDD013 487027 7667920 87.44 270 -60 38.90
25WCDD014 487057.6 7667920 89.27 270 -60 76.40
25WCDD015 487055 7667930 88.47 270 -60 76.90
25WCDD016 487051.1 7667945 87.34 270 -60 64.90
25WCDD017 487040 7667910 88.20 270 -60 66.00
25WCDD018 487027 7667910 87.50 270 -60 33.50
25WCDD019 487030 7667955 86.62 270 -60 30.40
25WCDD020 487030 7667945 87.34 270 -60 47.00
25WCDD021 487045 7667955 86.77 270 -60 53.00
25WCDD022 487047 7667900 81.12 270 -60 56.55
25WCDD023 487110 7667820 84.18 270 -60 221.80
25WCDD024 487030 7667900 80.03 270 -60 40.00
25WCDD025 487093 7667825 82.38 270 -60 209.90
Note: Grid coordinate system is GDA94 Zone 50
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Appendix 2: JORC Code, 2012 – Table 1 - Elizabeth Hill Diamond Drill
Program, October 2025
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Criteria JORC Code explanation Commentary
Sampling techniques • Nature and quality of sampling (e.g. cut channels, random chips, or
specific specialised industry standard measurement tools appropriate
to the minerals under investigation, such as down hole gamma sondes,
or handheld XRF instruments, etc). These examples should not be
taken as limiting the broad meaning of sampling.
• Include reference to measures taken to ensure sample representivity
and the appropriate calibration of any measurement tools or systems
used.
• Aspects of the determination of mineralisation that are Material to the
Public Report.
In cases where ‘industry standard’ work has been done this would be
relatively simple (e.g. ‘reverse circulation drilling was used to obtain 1 m
samples from which 3 kg was pulverised to produce a 30 g charge for fire
assay’). In other cases, more explanation may be required, such as where
there is coarse gold that has inherent sampling problems. Unusual
commodities or mineralisation types (e.g. submarine nodules) may warrant
disclosure of detailed information.
• Portable XRF (pXRF) readings have been recorded on core samples in zones which
have been identified to potentially contain mineralisation by visual logging. The
small (<8mm) pXRF beam has been aimed at the minerals of interest to take 1
reading to confirm/or falsify the presence of silver bearing minerals or other oxide
and/or sulphide minerals to assist with the logging and sampling of the drill core.
• pXRF does not record temperature readings but ambient climate temperatures
range from 27-40 deg Celsius.
• Portable XRF is calibrated daily along with Certified Reference Material (CRM)
checks during analysis.
Drilling techniques • Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air
blast, auger, Bangka, sonic, etc) and details (e.g. core diameter, triple
or standard tube, depth of diamond tails, face-sampling bit or other
type, whether core is oriented and if so, by what method, etc).
• Drilling was undertaken with a track-mounted LF90 diamond core drill rig capable
of drilling HQ core to 600m. Core was recovered in a triple tube. All the core in this
program was to be drilled HQ3.
• Core is orientated using Reflex ACT III HQ tool.
• Drillhole collars were surveyed using an IMDEX TN14 Gyro and Differential GPS.
• A Reflex Omni X-42 North Seeking Gyro is used for downhole surveying of the drill
holes and is calibrated prior to use, with readings taken at approximately every 5m
on the in and out run.
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Criteria JORC Code explanation Commentary
Sampling techniques • Nature and quality of sampling (e.g. cut channels, random chips, or
specific specialised industry standard measurement tools appropriate
to the minerals under investigation, such as down hole gamma sondes,
or handheld XRF instruments, etc). These examples should not be
taken as limiting the broad meaning of sampling.
• Include reference to measures taken to ensure sample representivity
and the appropriate calibration of any measurement tools or systems
used.
• Aspects of the determination of mineralisation that are Material to the
Public Report.
In cases where ‘industry standard’ work has been done this would be
relatively simple (e.g. ‘reverse circulation drilling was used to obtain 1 m
samples from which 3 kg was pulverised to produce a 30 g charge for fire
assay’). In other cases, more explanation may be required, such as where
there is coarse gold that has inherent sampling problems. Unusual
commodities or mineralisation types (e.g. submarine nodules) may warrant
disclosure of detailed information.
• Portable XRF (pXRF) readings have been recorded on core samples in zones which
have been identified to potentially contain mineralisation by visual logging. The
small (<8mm) pXRF beam has been aimed at the minerals of interest to take 1
reading to confirm/or falsify the presence of silver bearing minerals or other oxide
and/or sulphide minerals to assist with the logging and sampling of the drill core.
• pXRF does not record temperature readings but ambient climate temperatures
range from 27-40 deg Celsius.
• Portable XRF is calibrated daily along with Certified Reference Material (CRM)
checks during analysis.
Drill sample recovery • Method of recording and assessing core and chip sample recoveries
and results assessed.
• Measures taken to maximise sample recovery and ensure
representative nature of the samples.
Whether a relationship exists between sample recovery and grade and
whether sample bias may have occurred due to preferential loss/gain of
fine/coarse material.
• Core recovery was systematically recorded from the commencement of diamond
coring to the end of hole, by reconciling against driller depth blocks, production
plods and knowledge obtained from visual inspection.
• Core recoveries typically averaged above 90% with isolated minor zones of lessor
recovery.
• Samples have been submitted to the laboratory for analysis with results awaited
and any relationship between core recovery and grade has yet to be determined.
There is no reason to expect any sampling bias.
• Detailed core recovery data is maintained throughout the program as part of the
geotechnical logging.
Logging • Whether core and chip samples have been geologically and
geotechnically logged to a level of detail to support appropriate Mineral
Resource estimation, mining studies and metallurgical studies.
• Whether logging is qualitative or quantitative in nature. Core (or
costean, channel, etc) photography.
• The total length and percentage of the relevant intersections logged.
• Diamond drill core is orientated and geologically and geotechnically logged for the
entire drill hole by an experienced team of geologists and the data stored in a
database.
• All core logging is both qualitative and quantitative in nature.
• Photographs are taken prior to the cutting and sampling of the core; core is wetted
to improve the visibility of features in the photographs.
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Criteria JORC Code explanation Commentary
Sampling techniques • Nature and quality of sampling (e.g. cut channels, random chips, or
specific specialised industry standard measurement tools appropriate
to the minerals under investigation, such as down hole gamma sondes,
or handheld XRF instruments, etc). These examples should not be
taken as limiting the broad meaning of sampling.
• Include reference to measures taken to ensure sample representivity
and the appropriate calibration of any measurement tools or systems
used.
• Aspects of the determination of mineralisation that are Material to the
Public Report.
In cases where ‘industry standard’ work has been done this would be
relatively simple (e.g. ‘reverse circulation drilling was used to obtain 1 m
samples from which 3 kg was pulverised to produce a 30 g charge for fire
assay’). In other cases, more explanation may be required, such as where
there is coarse gold that has inherent sampling problems. Unusual
commodities or mineralisation types (e.g. submarine nodules) may warrant
disclosure of detailed information.
• Portable XRF (pXRF) readings have been recorded on core samples in zones which
have been identified to potentially contain mineralisation by visual logging. The
small (<8mm) pXRF beam has been aimed at the minerals of interest to take 1
reading to confirm/or falsify the presence of silver bearing minerals or other oxide
and/or sulphide minerals to assist with the logging and sampling of the drill core.
• pXRF does not record temperature readings but ambient climate temperatures
range from 27-40 deg Celsius.
• Portable XRF is calibrated daily along with Certified Reference Material (CRM)
checks during analysis.
Subsampling
techniques and
sample preparation
• If core, whether cut or sawn and whether quarter, half or all core taken.
• If non-core, whether riffled, tube sampled, rotary split, etc and whether
sampled wet or dry.
• For all sample types, the nature, quality and appropriateness of the
sample preparation technique.
• Quality control procedures adopted for all subsampling stages to
maximise representivity of samples.
• Measures taken to ensure that the sampling is representative of the in-
situ material collected, including for instance results for field
duplicate/second-half sampling.
• Whether sample sizes are appropriate to the grain size of the material
being sampled.
• No new drill sample assay results are being reported. The portable XRF analyses
are based on individual readings on minerals taken on the core in zones where
visual logging identified the potential presence of mineralisation minerals. The
analyses were on core in the core trays and was to assist with the identification of
minerals for the geological core logging and sampling.
• pXRF QAQC includes daily calibration and analysing a CRM standard, every 20
samples.
• The CRM used was OREAS 133A.
• pXRF analysis may introduce some sample variability and pXRF results are
regarded as qualitative at this stage.
• 30 second readings were undertaken on minerals of interest.
• pXRF readings are only performed on dry drill core.
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Criteria JORC Code explanation Commentary
Sampling techniques • Nature and quality of sampling (e.g. cut channels, random chips, or
specific specialised industry standard measurement tools appropriate
to the minerals under investigation, such as down hole gamma sondes,
or handheld XRF instruments, etc). These examples should not be
taken as limiting the broad meaning of sampling.
• Include reference to measures taken to ensure sample representivity
and the appropriate calibration of any measurement tools or systems
used.
• Aspects of the determination of mineralisation that are Material to the
Public Report.
In cases where ‘industry standard’ work has been done this would be
relatively simple (e.g. ‘reverse circulation drilling was used to obtain 1 m
samples from which 3 kg was pulverised to produce a 30 g charge for fire
assay’). In other cases, more explanation may be required, such as where
there is coarse gold that has inherent sampling problems. Unusual
commodities or mineralisation types (e.g. submarine nodules) may warrant
disclosure of detailed information.
• Portable XRF (pXRF) readings have been recorded on core samples in zones which
have been identified to potentially contain mineralisation by visual logging. The
small (<8mm) pXRF beam has been aimed at the minerals of interest to take 1
reading to confirm/or falsify the presence of silver bearing minerals or other oxide
and/or sulphide minerals to assist with the logging and sampling of the drill core.
• pXRF does not record temperature readings but ambient climate temperatures
range from 27-40 deg Celsius.
• Portable XRF is calibrated daily along with Certified Reference Material (CRM)
checks during analysis.
Quality of assay data
and laboratory tests
• The nature, quality and appropriateness of the assaying and laboratory
procedures used and whether the technique is considered partial or
total.
• For geophysical tools, spectrometers, handheld XRF instruments, etc,
the parameters used in determining the analysis including instrument
make and model, reading times, calibrations factors applied and their
derivation, etc.
• Nature of quality control procedures adopted (e.g., standards, blanks,
duplicates, external laboratory checks) and whether acceptable levels
of accuracy (i.e., lack of bias) and precision have been established.
• The pXRF is an Olympus Vanta with the latest 2025 software and is calibrated daily.
Analysis method uses 3 beam analysis set to 10 sec per beam for a 30 second read
time.
• CRM is analysed every 20 samples and has shown good repeatability.
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Criteria JORC Code explanation Commentary
Sampling techniques • Nature and quality of sampling (e.g. cut channels, random chips, or
specific specialised industry standard measurement tools appropriate
to the minerals under investigation, such as down hole gamma sondes,
or handheld XRF instruments, etc). These examples should not be
taken as limiting the broad meaning of sampling.
• Include reference to measures taken to ensure sample representivity
and the appropriate calibration of any measurement tools or systems
used.
• Aspects of the determination of mineralisation that are Material to the
Public Report.
In cases where ‘industry standard’ work has been done this would be
relatively simple (e.g. ‘reverse circulation drilling was used to obtain 1 m
samples from which 3 kg was pulverised to produce a 30 g charge for fire
assay’). In other cases, more explanation may be required, such as where
there is coarse gold that has inherent sampling problems. Unusual
commodities or mineralisation types (e.g. submarine nodules) may warrant
disclosure of detailed information.
• Portable XRF (pXRF) readings have been recorded on core samples in zones which
have been identified to potentially contain mineralisation by visual logging. The
small (<8mm) pXRF beam has been aimed at the minerals of interest to take 1
reading to confirm/or falsify the presence of silver bearing minerals or other oxide
and/or sulphide minerals to assist with the logging and sampling of the drill core.
• pXRF does not record temperature readings but ambient climate temperatures
range from 27-40 deg Celsius.
• Portable XRF is calibrated daily along with Certified Reference Material (CRM)
checks during analysis.
Verification of
sampling and
assaying
• The verification of significant intersections by either independent or
alternative company personnel.
• The use of twinned holes.
• Documentation of primary data, data entry procedures, data
verification, data storage (physical and electronic) protocols.
• Discuss any adjustment to assay data.
• pXRF data is exported digitally from devices for import into a digital database.
• No changes or calibrations have been applied to the pXRF data.
• The current drill program is aimed to twin several historical drill holes to verify grade
reported for the historical drill holes.
Location of data
points
• Accuracy and quality of surveys used to locate drill holes (collar and
down-hole surveys), trenches, mine workings and other locations used
in Mineral Resource estimation.
• Specification of the grid system used.
• Quality and adequacy of topographic control.
• 2025 drill holes are located using a Differential GPS (DGPS), with accuracy to within
20cm for northing and easting. Historical collars have been surveyed by DGPS in
instances where collars have been identified.
• 2025 drilling uses a downhole north seeking gyro for surveys that provides
continuous readings in and out of the drill hole. The data is uploaded into a data
base for storage.
• A 0.5m DTM is used for topographic control.
• Data has
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