American Rare Earths’ Halleck Creek poject set to anchor U.S. rare earth supply
American Rare Earths CEO Mark Wall joined Steve Darling from Proactive’s OTC studio in New York City to discuss the strategic importance and long-term potential of the Halleck Creek rare earths project in Wyoming, positioning the project as a cornerstone for US domestic supply.
Wall described the scale of the project as extraordinary, noting: “That’s 2.5 billion tonnes of ore, with a B, that’s a lot.” He compared Halleck Creek to large, long-lived copper porphyry systems, emphasizing that its low strip ratio of 0.16 and near-surface mineralization make it “very, very simple to mine.” He emphasized that the asset has the potential to act as a “strategic anchor for the domestic supply of United States rare earths for many years to come.”
Current estimates suggest a supply of about 100 years, but Wall said that’s a conservative figure. At a lower threshold grade of 1,000 ppm, the resource may extend beyond 400 years, with the orebody remaining open both at depth and laterally.
Looking ahead to 2026, the company is planning several key milestones to reinforce the strategic importance of the project, including completion of the pre-feasibility study (PFS), initiation of the feasibility study, submission of state permitting, and ongoing engagement in Washington, DC.
Halleck Creek hosts both heavy and light rare earths, including terbium, dysprosium, and samarium, elements critical for defense and high-tech applications. Combined with Wyoming’s supporting infrastructure, permitting framework, and collaboration with the University of Wyoming on potential industrial uses of engineered sand byproducts, Wall has positioned Halleck Creek as a significant domestic rare earth opportunity that could strengthen the independence of the U.S. supply chain.
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