Completion of Drilling: Defender Tungsten Project
Original announcement by lse on
- Company
- Great Western Mining Corporation PLC
- Ticker
- GWMO
- Exchange
- LSE
- Region
- Nevada, USA
- Primary commodity
- Tungsten
- Secondary commodities
- None reported
- Document categories
- Drill results, Resource update
- Extracted
- 2026-09-23 08:37:21 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Great Western Mining Corporation PLC has completed its 23-hole reverse circulation drilling campaign at the Defender Tungsten Project in Nevada, USA, totaling approximately 2,590 meters. Geological logging and shortwave ultraviolet inspection confirmed the presence of scheelite-bearing skarn across several wide intervals in multiple drillholes, consistent with previous surface sampling. Samples have been dispatched to an accredited laboratory for assay, with results expected in Q4 2026, which will inform a maiden Mineral Resource Estimate.
Reasoning: Great Western Mining Corporation PLC has completed its RC drilling campaign, intersecting multiple wide intervals of visually identified scheelite-bearing skarn, which is encouraging and consistent with surface sampling, but quantitative assay results are pending.
Positive factors
- Drilling campaign completed as planned
- Visual scheelite mineralization observed in multiple wide intervals
- Consistency of subsurface observations with prior surface sampling
- JORC compliant reporting and QP/CP sign-off
- Accredited laboratory used for assays
Negative factors
- No quantitative assay results reported yet
- Mineralization based on visual estimates, not assays
- Recovery data not assessed for potential bias
Low confidence — this extraction should be reviewed alongside the original source.
Facts used in scoring: 3
Classification and evidence
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release includes a detailed JORC Code table outlining sampling techniques, quality control procedures (CRMs, blanks, duplicates), and states that an accredited laboratory (American Assay Laboratories) was used, with sign-off by Competent Persons.
Evidence · table
“AAL is an accredited laboratory. Standard four acid digest and multi-element ICP analysis.”
Context: Quality of assay data and laboratory tests
Apparent Width Onlynegative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Why it applies: The reported intervals are given as downhole lengths (e.g., '100 ft (31 m) of continuous skarn') without any mention of true width or drill orientation relative to mineralization, implying these are apparent widths.
Evidence · text
“Drilling intersected 100 ft (31 m) of continuous skarn from 50 ft (15 m) to 150 ft (46 m) depth”
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: The primary objective of the drilling was to 'link historic workings between the Defender and Pine Crow mines, across an approximate strike length of around 1 km,' indicating an effort to extend known mineralization.
Evidence · text
“Primary objective of the drilling was to link historic workings between the Defender and Pine Crow mines, across an approximate strike length of around 1 km.”
Visual Mineralizationneutral · Story-specific tag
No canonical definition is currently available.
Why it applies: The mineralization is reported based on visual inspection using shortwave ultraviolet (SWUV) to identify scheelite, rather than quantitative assay results, which are pending.
Evidence · text
“Shortwave Ultraviolet confirms that multiple holes intersected scheelite bearing skarn across wide intervals”
Extracted facts
Stored fact records: 3. Some facts used in scoring do not have a stored record.
Drill Results (3)
Fact 1Defender · tungstenIntercept: 31 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Defender
- Commodity
- tungsten
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- GWMO
Geometry
- Intercept
- 31 m
- From
- 15 m
- To
- 46 m
- Intercept Depth
- 15 m
Classification
- Deposit Type
- skarn
- Program
- exploration
- Sample Type
- drill
- Group ID
- Defender:15-46
- Mining Method
- unknown
Location
- Location
- Defender Hill
- CRS
- NAD83 / UTM zone 11N
- EPSG
- 26911
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-23T00:00:00.000Z
Reasoning: Visual inspection confirmed significant scheelite mineralization over a wide, continuous interval, which is encouraging for exploration, but lacks quantitative assay data.
Positive factors
- Significant visual scheelite mineralization observed
- Wide continuous interval of skarn
Negative factors
- No quantitative assay results reported
- Interval is based on visual estimates
Evidence · text
“Defender Hill: Drilling intersected 100 ft (31 m) of continuous skarn from 50 ft (15 m) to 150 ft (46 m) depth, with visible scheelite identified throughout the interval.”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
DFRC022Defender · tungstenIntercept: 38 mView all detailsHide details
Identity
- Hole ID
- DFRC022
- Project
- Defender
- Commodity
- tungsten
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- GWMO
Geometry
- Intercept
- 38 m
- From
- 0 m
- To
- 38 m
- Hole Depth
- 1.5 m
- Intercept Depth
- 0 m
Classification
- Deposit Type
- skarn
- Program
- exploration
- Sample Type
- drill
- Group ID
- DFRC022:0-38
- Mining Method
- unknown
Location
- Location
- Dough God Mine
- CRS
- NAD83 / UTM zone 11N
- EPSG
- 26911
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-23T00:00:00.000Z
Reasoning: Visual inspection confirmed significant scheelite mineralization from surface over a wide, continuous interval, which is highly encouraging for exploration, but lacks quantitative assay data.
Positive factors
- Significant visual scheelite mineralization observed from surface
- Wide continuous interval of skarn
Negative factors
- No quantitative assay results reported
- Interval is based on visual estimates
Evidence · text
“Dough God Mine: Approximately 125 ft (38 m) of continuous skarn was intersected from surface to 125 ft (38 m) depth, with abundant visible scheelite observed across the full interval”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Fact 3Defender · tungstenIntercept: 9 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Defender
- Commodity
- tungsten
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- GWMO
Geometry
- Intercept
- 9 m
- From
- 35 m
- To
- 44 m
- Intercept Depth
- 35 m
Classification
- Deposit Type
- skarn
- Program
- exploration
- Sample Type
- drill
- Group ID
- Defender:35-44
- Mining Method
- unknown
Location
- Location
- Pine Crow Mine
- CRS
- NAD83 / UTM zone 11N
- EPSG
- 26911
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-23T00:00:00.000Z
Reasoning: Visual inspection confirmed scheelite mineralization over a moderate interval, which is encouraging for exploration, but lacks quantitative assay data and appears less intense than other targets.
Positive factors
- Visual scheelite mineralization observed
- Continuous interval of skarn
Negative factors
- No quantitative assay results reported
- Interval is based on visual estimates
- Narrower intervals of intense fluorescence compared to other targets
Evidence · text
“Pine Crow Mine: A 30 ft (9 m) interval of continuous skarn was intersected from 115 ft (35 m) to 145 ft (44 m) depth, exhibiting intense scheelite UV fluorescence over narrower intervals compared to the targets further east.”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
How Atlas produces this analysis
Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.