- 575 Hectares adjacent to the Valley Pit (Highland Valley Mine), Logan Lake, British Columbia
- Brownfield project (past-producer) located adjacent to large active open-pit mining operation (Teck Resources Highland Valley Copper)
- Located in mining friendly region of Southwestern British Columbia
- GSPR has obtained historical data from historical operators and is consolidating and reinterpreting this data to support a 2023 Drill program
Significant Exploration Potential at Alwin Project
- The Alwin Project has significant exploration upside with the potential to grow open pit mineralization along strike and at depth as well as several underexplored porphyry style copper targets hosted both on GSP’s Alwin claims, as well as the Company’s 100% owned Mer Claims, approximately 2 km NW of the Alwin Project.
- Publicly available exploration data from HVC’s adjacent claims shows that historic IP anomalies coincident with HVC operations and exploration drill targets extend westward onto the Alwin claims.
- Notably, 2015 diamond drilling of these IP anomalies by Teck Resources at the Bethsaida Zone located 700 metres east of Alwin yielded significant intercepts of porphyry style copper mineralization. (Mineralization hosted on nearby properties is not necessarily indicative of mineralization that may be hosted on the Alwin Project.)
Alwin Project – Open Pit & Underground Initial MRE
- Highlights*:
- Inferred Mineral Resource comprising 1.46 million tonnes (Mt) tonnes, average grading of 1.08% copper (Cu), yielding 34.6 million pounds of Cu;
- Multiple high-grade zones; with 66% of the contained Cu amenable to open pit and 34% by underground mining;
- Significant Potential for resource expansion of underexplored surface zones within pit, along strike, and at depth below the pit;
- Potential for significant gold-silver contribution with additional drilling as highlighted by historic and recent gold-silver intercepts (see GSP news release dated August 19, 2024).
- The 2024 Alwin MRE comprises an inferred mineral resource of 34.6 million pounds of Cu at an average grade of 1.08 % Cu within 1.46 Mt*.
2024 Drilling – New Gold Discovery
- Discovery of a new high-grade gold zone within drill hole AM-24-06 grading 5.04 grams-per-tonne (g/t) gold (Au) and 1.01% copper (Cu) over 7.90 m, including 22.93 g/t Au and 1.82% Cu over 1.64 m; in addition to an upper zone grading 1.22% Cu, 22.5 g/t Ag and 0.64 g/t Au over 2.5 m
- AM-24-06 was collared south of the Alwin Mine upper decline entrance and was designed to test for the extension of mineralization to the northwest and below the current mineral resource pit shell in an area with limited historic drilling.
- The results point to the presence of a unique high-grade gold subset of mineralization at Alwin that is currently not well understood.
- These results could be transformational for the Project and point to the need to further evaluate the spatial distribution of gold-primary zones of mineralization, given their significant mineral resource upside potential alongside the well-established copper mineralization.
- Please see news release dated January 16, 2025
2024 Drilling – High Grade Copper – Open Pit Expansion Potential
- Drill hole AM-24-01 intersected multiple zones of high-grade copper-silver-gold mineralization over a combined 36.2 metre (m) core interval. Significant assay results include a main zone averaging 2.41% Cu, 35 grams-per-tonne (g/t) silver (Ag), and 0.68 g/t gold (Au) over 17.4 m, including 4.11% Copper, 60 g/t Ag and 0.95 g/t Au over 8.4 m; in addition to an upper zone grading 1.01% Cu and 10.7 g/t Ag over 5.5 m
- The assay results for drill hole AM-24-01 confirm the presence of significant widths of high-grade copper mineralization below historically mined open stopes at greater than 10x the open pit copper lower cut-off of the Company’s current mineral resource, and in addition, affirm the consistent nature of accompanying gold and silver which add significant value in terms of copper-equivalency.
- Please see news release dated January 13, 2025
Alwin Mine Historic 3D and Drilling Compilation
- Digital and 3D spatial capture of 646 drill holes totaling 51,304 meters completed from surface and underground between 1967-1981, in addition to 36 recent surface exploration diamond core holes totaling 5,600 meters drilled by GSPR and previous operators
- Over $20 million in present day exploration value assuming all-up drilling costs of $400/meter, not including underground development costs
- Of the 646 drill holes, 140 holes totaling 17,273 meters were drilled from surface and 506 holes totaling 34,031 meters from underground*
*see news release dated: March 14, 2023
Alwin Mine Historic Dataset
- 425 drill holes totaling 2,062 copper assay samples with partial gold-silver data
- Global length weighted average copper grade of 1.8% from 3,287 meters sampled, compares favorably to 1.5% copper diluted head grade of historic production*
- Majority of historic drilling targeting a 600-metre strike length of the past producing Alwin high-grade underground copper mine
- Significant exploration upside potential with high-grade copper-silver-gold zones remaining open along strike of the Alwin Mine workings, with multiple zones open at depth!
*see news release dated: March 14, 2023
2023 Drilling Highlights
- Drillhole AM23-01 intersected 2.42% Cu, 47.0 gpt Ag, and 0.57 gpt Au over 12.8m including a 5.7m interval averaging 5.21% Cu, 103.1 gpt Ag and 1.22 gpt Au.
- Drilling demonstrates the high-grade potential for the Alwin Property and reinforces the polymetallic upside with significant gold and silver values.
- GSP’s data compilation exercise completed in 2023 suggests that many of the historic drillholes in the pre-2008 exploration of the property did not include assays for gold and silver.
- A total of 5 HQ-size diamond drill holes were completed totaling 640 meters. Drilling was completed from three sites over a 100-metre strike length targeting the upper and lower levels of the historic Alwin Mine “4 Zone”).
Alwin Mine Next Steps – Expansion Drilling
- The historic drill intervals were assayed for copper, with limited testing of gold, silver. Therefore, the full extent of polymetallic mineralization of historic drilling represents a significant exploration upside and requires follow up confirmation drilling of known zones and possible extensions to the west and east of the historic mine area.
- The high-grade mineralization zones remain open at depth and warrant further investigation.
- With the historic data compilation already generating targets for potential follow-up drilling,
Drilling Results
2023
* The estimated true width of mineralization is approximately 75% of the drilled width
**CuEQ % = [Cu (%) x 1] + [Ag (g/t) x 0.007997] + [Au (g/t) x 0.593883]
(using $US4.3/lb Cu, $US25/oz Ag. $US1,950/oz Au and historic recoveries 95.1% Cu, 89.7% Ag, 85.4% Au)
Please see News Release Dated January 16, 2025
2024
*True width estimate is 60% of Drilled Interval presented here.
**CuEQ % = [Cu (%) x 1] + [Ag (g/t) x 0.007926] + [Au (g/t) x 0.606956]
(using $US8,800/tonne Cu, $US23/oz Ag. $US1,850/oz Au and historic recoveries 95.1% Cu, 89.7% Ag, 85.4% Au). See News Release Dated February 7, 2024
2005 vs. 2014 Comparison
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