Resolution Minerals has completed 16 diamond core holes totalling 4,470 metres at its Golden Gate South prospect in Idaho, progressing one third of its 2026 drill program aimed at defining gold and tungsten mineralisation.
- Sixteen diamond core holes completed for 4,470 metres
- One third of 13,700-metre 2026 drill program underway
- Visual scheelite identified using ultraviolet light
- Core logging complete; samples dispatched for analysis
- Drilling targets extensions of gold and tungsten mineralisation
Drilling Progress at Golden Gate South
Resolution Minerals Ltd (ASX:RML) has reached a significant milestone in its 2026 drilling campaign at the Golden Gate South prospect within the Horse Heaven Antimony-Tungsten-Gold-Silver Project in Idaho, USA. The company has completed sixteen diamond core holes totalling 4,470 metres, representing about one third of its planned 13,700-metre program. Two drill rigs are currently operating on site, maintaining a steady pace toward the campaign’s objectives.
The drilling aims to delineate both gold and tungsten mineralisation along strike and at depth, focusing on extensions around historical workings and broad tungsten soil anomalies. The program is designed to clarify the scale and extent of mineralisation at Golden Gate South and Golden Gate North, building on previous discoveries and geological models.
Visual Identification of Scheelite and Core Logging
Core logging has been completed for all drilled holes, with detailed geological, alteration, and mineralisation data recorded. A notable feature of the current program is the use of shortwave ultraviolet light to visually identify scheelite, a tungsten ore mineral that fluoresces bright sky-blue. This technique, while useful for rapid field identification, is explicitly cautioned against as a substitute for laboratory assays due to its qualitative nature and inability to quantify tungsten grades or impurities.
Visual estimates of scheelite abundance have been reported for several drill intervals, with some veins showing up to 90% estimated scheelite content. However, Resolution Minerals emphasises that assay results are pending, expected within 3 to 10 weeks, and will provide the definitive measure of tungsten mineralisation.
Sampling and Analytical Work Underway
Samples from the first four holes (HH-GG26-001 to HH-GG26-004) have been dispatched for multi-element analysis. The company’s core sampling protocol involves halving HQ diamond core on geological intervals ranging from 0.2 to 1.5 metres, prioritising mineralised veins for finer sampling. Sample security and chain of custody are maintained rigorously, with core stored securely at the Antimony Camp facility before shipment.
Resolution’s CEO of US Operations, Craig Lindsay, expressed satisfaction with the drilling rate and the progress of core logging and sampling. The company is awaiting assay results that will be critical in assessing the economic potential of the mineralisation encountered.
Strategic Location and Regulatory Environment
Golden Gate sits within the broader Horse Heaven Project, adjacent to Perpetua Resources’ Stibnite Gold Project, a large, recently permitted antimony-gold development. The proximity to this major project and the recent inclusion of Antimony Ridge in the US Permitting Council’s FAST-41 Transparency Coverage program underscore the strategic importance and regulatory progress of Resolution’s operations in Idaho.
With 729 federal lode mining claims covering over 14,500 acres, the Horse Heaven Project represents a substantial landholding in a geologically prospective region. The company confirms all mining claims are in good standing, supporting ongoing exploration and development activities.
Next Steps and Market Implications
The current drilling campaign remains ongoing, with up to 45 holes and 13,700 metres planned for 2026. Investors should note that no assay results are included in this update, and visual scheelite observations are preliminary. The forthcoming assay data will be pivotal in confirming the grade and extent of tungsten and gold mineralisation, shaping the project’s development trajectory.
Resolution Minerals’ methodical approach to drilling, logging, and sampling at Golden Gate South reflects a disciplined exploration strategy aimed at unlocking value from this complex polymetallic system. The company’s progress will be closely watched as assay results emerge and the broader project moves through the permitting and development pipeline.
Bottom Line?
Resolution Minerals is steadily advancing its Idaho drilling campaign, but assay results will be crucial to validate early visual indications of tungsten and gold mineralisation.
Questions in the middle?
- Will assay results confirm the extent and grade of tungsten mineralisation indicated by visual scheelite observations?
- How might the proximity to Perpetua Resources’ Stibnite Gold Project influence Resolution’s development strategy or partnerships?
- What timelines and milestones can investors expect for the completion of the full 13,700-metre drill program and subsequent resource updates?