Resolution Targets 100 Samples Over 59km² to Unlock Idaho’s Critical Minerals Potential

Exploration Steps Up at Horse Heaven

Resolution Minerals Ltd (ASX – RML) has initiated a comprehensive stream sediment sampling program at its Horse Heaven project in Idaho, USA, marking the first modern, district-scale geochemical survey in the area. Spanning 59 square kilometres and targeting approximately 44 kilometres of streams, the program aims to collect around 100 samples to identify pathfinder element halos associated with antimony, tungsten, gold, and silver mineralisation.

This effort leverages advanced analytical techniques to explore multiple catchments draining prospective geological structures outside the well-studied Golden Gate and Antimony Ridge areas. The objective is to generate new high-priority targets for follow-up soil grids, geophysical surveys, and drilling campaigns, thereby expanding the known mineral potential of the region.

Strategic Geological Nexus with Stibnite

Horse Heaven sits adjacent to Perpetua Resources Inc’s Stibnite Gold Project, a $3 billion market cap operation hosting a 4.8 million ounce gold reserve alongside significant antimony and tungsten resources. Resolution’s program seeks to validate the Intrusion Related Gold System (IRGS) exploration model, which posits a geological connection between Horse Heaven and the Stibnite deposit via a buried intrusive body.

Perpetua’s recent success in securing a US$2 billion loan from the Export-Import Bank of the United States, alongside a US$425 million capital raise, underscores the strategic importance of the district. The Stibnite project, once the last domestic source of antimony used in weapons, is poised for a fast-tracked restart, highlighting the critical minerals supply imperative for US national security and energy transition.

Capitalising on a Critical Minerals Hub

Resolution’s CEO of U.S. Operations, Craig Lindsay, emphasised the scale and potential of Horse Heaven, describing it as “one of the most target-rich projects” he has encountered. The proximity to Stibnite not only validates the district’s global significance but also offers Resolution direct leverage from infrastructure, government support, and investor attention focused on Idaho’s critical minerals sector.

The recent visit by high-profile US officials, including Idaho Governor Brad Little and representatives from the Department of Agriculture and the US Army, to Perpetua’s Stibnite project further cements the region’s status as a focal point for strategic resource development. Resolution aims to replicate this success by advancing Horse Heaven through exploration and eventual development, contributing to the US’s domestic supply chain resilience.

Next Steps and Market Implications

Following the stream sediment sampling, Resolution plans to undertake mapping, soil grid programs, geophysical surveys, and drilling to refine and test new targets. The company’s approach reflects a broader US policy emphasis on securing critical minerals essential for defense and clean energy technologies.

While results from the sampling program are pending, the strategic positioning of Horse Heaven adjacent to a government-backed project like Stibnite places Resolution in a strong position to attract further investment and support. The unfolding developments in Idaho could signal a new chapter for North American critical minerals exploration and production.