Up to 20 Drill Holes Set for August at Horse Heaven Project

Resolution Minerals has secured final US Forest Service permits to begin drilling at its Horse Heaven Project, targeting gold, antimony, and tungsten. The company also advances its acquisition, setting the stage for exploration later this year.

  • Final US Forest Service drilling permits granted for Horse Heaven Project
  • Phase 1 drilling of up to 20 holes to start August 2025
  • Project adjacent to Perpetua Resources’ Stibnite Gold Mine
  • Key acquisition condition completed; shareholder approval pending
  • Upcoming escrow releases and option expiries announced
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Drilling Permits Unlock Exploration Potential

Resolution Minerals Ltd (ASX, RML) has reached a pivotal milestone with the US Forest Service granting final approval for its drilling plan at the Horse Heaven Project in Idaho. This green light enables the company to commence a Phase 1 drilling campaign as early as August 2025, focusing on high-priority targets for antimony, gold, tungsten, and silver.

The Horse Heaven Project is strategically located adjacent to the NASDAQ-listed Perpetua Resources Corp’s A$2 billion Stibnite Gold Mine, a significant asset in the US critical metals landscape. Resolution’s planned drilling will test mineralisation beyond the oxide and sulphide layers, potentially unlocking new resource zones.

Historical Context and Exploration Strategy

The Golden Gate Fault Zone, a 3.5-kilometre structure within the project area, has a history of shallow gold mineralisation identified in drilling campaigns dating back to the 1980s and 1990s. Notably, previous drilling focused on oxide gold near the surface, leaving deeper sulphide zones and other metals like antimony and tungsten largely unexplored.

Resolution’s Phase 1 program targets up to 20 drill holes, totaling approximately 20,000 feet, primarily around the Golden Gate target area. This approach aims to confirm and expand known gold mineralisation and investigate the presence of critical metals that have not been historically assayed.

Advancing Acquisition and Corporate Developments

Alongside exploration progress, Resolution has completed a key acquisition condition with the vendor finalising ownership of the Horse Heaven Project’s holding companies. The acquisition remains subject to due diligence and shareholder approval, with a general meeting scheduled for 25 July 2025 to seek the latter.

Additionally, the company announced the early release of 12.5 million shares from voluntary escrow and the upcoming expiry of over 81 million options by the end of July. These corporate actions may influence trading dynamics in the near term.

Looking Ahead

Resolution Minerals is preparing for a potential Phase 2 drilling campaign in spring or summer 2026, contingent on initial results. The company is also conducting mapping and sampling programs to refine exploration targets and support permitting efforts.

CEO of US Operations Craig Lindsay highlighted the transformational nature of the drilling approval, emphasizing the project’s potential to contribute to the US’s domestic supply of critical metals amid growing demand.

Bottom Line?

With drilling permits secured and acquisition steps advancing, Resolution Minerals is poised to unlock the Horse Heaven Project’s critical metals potential, but results and approvals remain key near-term catalysts.

Questions in the middle?

  • Will Phase 1 drilling confirm significant gold and critical metal mineralisation beyond historical zones?
  • How will shareholder approval impact the acquisition timeline and project funding?
  • What market reaction will the upcoming escrow releases and option expiries trigger?