Pinnacle Minerals Ignites Modern Exploration at Historic US Antimony Queen Project

Historic Riches Meet Modern Exploration

Pinnacle Minerals Ltd (ASX – PIM) has taken a significant step forward in its North American expansion by commencing a systematic exploration program at the Antimony Queen Project in Washington State. This marks the first time contemporary geological and geophysical techniques are being applied to a district that historically produced notable quantities of antimony and gold, alongside other critical minerals.

The project area spans approximately 500 hectares within the Gold Creek District, a region with a mining history dating back to the early 1900s. The site boasts multiple historic adits and more than 1,000 feet of underground workings, providing a brownfields platform that Pinnacle aims to rapidly advance with modern exploration methods.

A Multi-Mineral Opportunity in a Critical Corridor

Antimony Queen is situated within a recognized U.S. critical minerals corridor, enhancing its strategic importance amid growing demand for supply chain security in critical and battery minerals. Historical records, while non-JORC compliant, indicate production of approximately 1,000 to 1,050 tonnes of antimony-bearing ore with grades averaging around 27% antimony. The district also hosts gold, silver, lead, zinc, and tungsten, suggesting a polymetallic system with diverse exploration upside.

Early field activities have included geological mapping and sampling designed to validate and extend the known mineralisation. Pinnacle is also processing airborne magnetic and satellite data to delineate structural controls and identify high-priority drill targets. Assay results from recent rock-chip and channel samples are expected imminently and will feed into a modern 3D geological model to guide future drilling.

Securing Tenure and Advancing Permitting

In a notable tenure development, Pinnacle asserts senior rights over the Antimony Queen claims following earlier location dates compared to overlapping claims lodged by other parties, including Xtra Energy Corp and SD&T Ltd. This seniority reduces project risk and strengthens Pinnacle’s position as it advances exploration.

Engagement with U.S.-based consultants and local authorities is underway to navigate drill permitting requirements, a critical step before maiden drilling can commence. This proactive approach underscores Pinnacle’s commitment to advancing the project efficiently and responsibly.

Strategic Growth in North America

Executive Chairman William Witham highlighted the significance of this milestone, emphasizing the opportunity to revitalize a historically productive district with modern technology. The Antimony Queen Project complements Pinnacle’s existing North American portfolio, including the Thunder Mountain Project in Idaho, positioning the company as a growing player in the U.S. critical minerals sector.

As assay results and geophysical interpretations come to light, Pinnacle is poised to build a pipeline of exploration catalysts that could unlock substantial value for shareholders while contributing to critical mineral supply chains.