Highlights
- 2025 assays confirm extensive near-surface gold mineralisation across Golden Gate North and Golden Gate South, with all holes intersecting gold.
- Reverse circulation hole HH-GG25-012R delivered 99m at 0.23g/t Au from surface and intersected 8m at 0.14% tungsten within a broader 21m tungsten zone.
- Diamond core hole HH-GG25-006C reported 133.7m at 0.55g/t Au, including 15.6m at 1.10g/t Au.
- Two gold deposits have been identified within the Golden Gate Fault Zone.
- 2026 drilling will expand along-strike and at depth, with new permitting to increase the Golden Gate drilling footprint and advance work at Antimony Ridge.
Resolution Minerals Ltd (ASX:RML) has reported encouraging final assay results from its 2025 drilling campaign at the Golden Gate Fault Zone within its 100%-owned Horse Heaven Gold-Antimony-Tungsten-Silver Project in Idaho, USA. The latest results confirm extensive near-surface gold mineralisation and a significant tungsten intercept at Golden Gate.
The program comprised both diamond core and RC drilling designed to test near-surface mineralisation, evaluate depth and flow rates of the water table, and assess RC drilling as a method to quickly obtain necessary data.

Broad Gold Intercepts Across RC Program
The 2025 RC program included four drill holes: three at Golden Gate North (HH-GG25-011R, -012R, -013R) and one at Golden Gate South (HH-GG25-014R). All holes intersected gold mineralisation and one hole intercepted tungsten mineralisation. Notably, all holes were stopped at the water table.
- HH-GG25-011R: The entire down hole interval of the hole (50.3m) at 0.13g/t Au.
- HH-GG25-012R: Down hole interval of 99m at 0.23g/t Au from surface; including: 20m at 0.35g/t Au from 0m; and 9.1m at 0.65g/t Au from 89.9m. The hole ended in gold mineralisation, 0.80g/t Au over 1.5m.
- HH-GG25-013R: Entire hole with down hole interval of 99.1 metres at 0.38g/t gold from surface, including 9.1 metres at 0.54g/t gold, and also ended in mineralisation.
- At Golden Gate South, HH-GG25-014R encountered anomalous gold with low grade intervals throughout the hole, including 9.1 metres at 0.35g/t gold.
Each RC hole encountered groundwater earlier than planned, providing valuable hydrogeological information for future drilling and potential mine planning.
Tungsten Discovery Extends Mineral Potential
A notable development from the RC campaign was the tungsten intercept in HH-GG25-012R. The hole returned 8 metres at 0.14% tungsten from 79.3 metres within a down hole interval of 21 metres grading 0.06% tungsten from 70.1 metres,
The intercept confirms the extension of tungsten mineralisation from nearby historic workings. The company plans to reanalyse tungsten-bearing samples using lithium-borate fusion and X-ray fluorescence methods to further assess concentrations.
Diamond Core Program Confirms Depth Continuity
The final diamond core hole of the 2025 campaign, HH-GG25-006C, reported gold mineralisation. Results included 103.5 metres at 0.37g/t gold from surface and 133.7 metres at 0.55g/t gold from 376.5 metres, including 15.6 metres at 1.10g/t gold from 166.7 m.
All 10 diamond core holes drilled in 2025 intersected significant gold intervals.
Gold Discoveries
Two gold deposits have been identified within the Golden Gate. Further surface exploration, including detailed mapping and sampling, together with additional drilling, will be undertaken to establish whether the two zones (Golden Gate North and Golden Gate South) connect to form a single continuous deposit, are separated by fault displacement, or represent two distinct but parallel gold systems.
Exploration Model and Next Phase
With the 2025 drilling campaign now complete, the company will focus its 2026 program on defining the shape and size of Golden Gate North and Golden Gate South. The company plans to file a new Plan of Operation for the Golden Gate Fault Zone. This will significantly increase the drilling footprint by reopening historical routes and constructing new ones to cover the entire projected fault line.
Simultaneously, a separate plan for Antimony Ridge will be submitted to facilitate drilling and bulk sampling of high-grade antimony (Sb) near the surface. Ongoing metallurgical testing will scale alongside these drilling milestones.
The final results from the 2025 drilling campaign confirm widespread gold mineralisation at Golden Gate North and Golden Gate South, alongside the discovery of tungsten mineralisation within the system. The 2026 program will aim to further define the scale and continuity of the deposit across the Golden Gate Fault Zone.
RML shares were trading at AUD 0.042 per share at the time of writing on 17 February 2026.