Exploration Strategy & Drill Program Results
Thunder Gold’s exploration strategy at Tower Mountain is focused on demonstrating scale, continuity, and growth potential across the intrusive contact. With more than 40,000 metres of historical drilling and multiple recent drill campaigns, the project continues to deliver consistent grades, broad mineralized intervals, and new expansion targets. Each phase of drilling has systematically advanced the geological model, confirmed the predictability of the system, and highlighted the opportunity for a large-tonnage, long-life gold operation in a premier jurisdiction.
Highlights
- 13 holes completed totalling 1,773 metres across four target areas
- 92% hit rate, with 12 of 13 holes returning significant gold mineralization
- Standout intercepts include 1.25 g/t Au over 103.5 m and 0.58 g/t Au over 187.5 m
- High-grade hit of 327 g/t Au over 1.0 m with visible gold at the A-Target
- All-in drilling costs under C$250/m — among the lowest in Canada
- Program completed safely, on time, and under budget
Summary
Phase Two delivered a strong combination of expansion, grade consistency, and discovery across four separate zones surrounding the Tower Mountain Intrusive Complex (TMIC). Results from the P-Target on the eastern side were statistically consistent with the 41,000 metres previously drilled on the western side, confirming scale and continuity across the system. The 3738-Target showed broad, continuous mineralization, while the A-Target returned both strong widths and a standout high-grade intercept with visible gold. The H-Target delivered a successful first test and remains open. The program reinforced the project’s scalability and highlighted Tower Mountain’s rare combination of grade consistency, low-cost exploration, and growth potential.
Highlights
- 9 holes drilled (1,209 metres) out of a planned 2,000 metres
- 92% success rate with 8 of 9 holes returning low-grade gold over broad intervals
- Gold values ranged from 0.10 to 0.50 g/t Au across tens of metres
- Interpretation indicates a 30–40° southeast plunge of the high-grade target
- All-in exploration costs of C$273/m, below guidance
- Remaining 800 metres deferred to Phase Two due to access and safety conditions
Summary
Phase One focused on testing the P-Target along a 300-metre strike length and at depth. Despite challenging access and winter conditions, the program confirmed the down-plunge geometry of the mineralized monzonite and delivered consistent mineralization comparable to historical results from the western TMIC contact. Although the highest-grade host rocks were not intersected in this phase, drilling validated the geological model and highlighted strong parallels in grade distribution with western drill data. With low exploration costs and clear vectors for follow-up, Phase One laid the groundwork for the successful Phase Two program.
Highlights
- 4,000 metres drilled, confirming the outline of a large-tonnage, low-grade gold system
- Continuity established between the A and Ellen targets across a 300 x 300 m block
- High-grade intercepts including 941.0 g/t Au over 1.5 m (TM23-137) — the highest ever reported at Tower Mountain
- Multiple broad gold intervals such as:
- 17 g/t Au over 250.4 m (TM23-139)
- 53 g/t Au over 24.5 m (TM23-140)
- 59 g/t Au over 36.3 m and 1.12 g/t over 13.4 m (TM23-143)
- Demonstrated strong continuity with 11 of 12 holes intersecting broad anomalous mineralization
- Completed on time and on budget, with all-in exploration costs of ~$260/m
Summary
The 2023 Phase One drill campaign successfully expanded the mineralized footprint at Tower Mountain, confirming continuity between the A and Ellen targets and defining a cohesive block of mineralization across a 500-metre strike length open along trend. High-grade intercepts — including the project’s best-ever result of 941.0 g/t Au over 1.5 metres — validated the potential for both bulk-tonnage and structurally hosted high-grade mineralization within the same system. Nearly every hole returned long intervals of gold above cutoff thresholds, demonstrating excellent consistency. Historical comparisons further reinforced the scale and quality of the system, aligning Tower Mountain with some of the most successful results reported elsewhere in the Shebandowan Greenstone Belt. With more than 10,000 metres of high-priority IP anomalies remaining untested, the program set the stage for targeted follow-up and aggressive expansion.
Highlights
- Established continuity of mineralization at depth at the Bench target
- Expanded Bench zone along strike and down dip
- Identified new mineralized zones at the A, T, Ellen, and 110 targets
- 58 surface channel samples at the A-Target averaged 3.16 g/t Au across 20 metres
- Multiple drill holes delivered broad anomalous gold intervals over hundreds of metres
- Confirmed grade tenor, extent, and contact-related mineralization patterns
Summary
The 2021–2022 program achieved all major exploration objectives, confirming mineralization continuity at depth and expanding known zones. New mineralized areas were drilled at the A, Ellen, T, and 110 targets, while high-grade channel sampling at the A-Target led to follow-up drilling that returned strong intercepts. At the Bench Zone, two of the deepest holes to date intersected long runs of anomalous gold over several hundred metres. The program also validated historical results and confirmed the broader potential of the TMIC perimeter, laying the foundation for future targeting and expansion drilling.
