USA — American Rare Earths Limited (ARR) has announced the early completion of its 2024 drilling campaign at the Cowboy State Mine area, part of the Halleck Creek Project in Wyoming.
The campaign has yielded promising results, potentially advancing the project’s development timeline.
The comprehensive drilling program encompassed 12 Reverse Circulation (RC) holes, 11 HQ core holes and a total depth of 2,616 metres (8,581 feet).
Notably, two core holes reached depths of 300 metres, suggesting that rare earth mineralisation extends beyond current exploration depths.
ARR collected an impressive 1,348 samples during the campaign, including 689 RC samples and 659 core samples.
These samples have been dispatched to ALS Global for splitting and assay.
The results will play a crucial role in updating geological models and refining resource estimates.
Preliminary lithologic logs from the core holes have revealed the presence of the Red Mountain Pluton (RMP) at the base of each hole, reinforcing the deposit’s potential.
This data will be instrumental in refining the upcoming Pre-feasibility Study (PFS) for the Cowboy State Mine area.
Chris Gibbs, CEO of American Rare Earths, expressed enthusiasm about the project’s progress, stating: “The team at Wyoming Rare (USA) continues to demonstrate the exciting potential for this world-class deposit at the Cowboy State Mine area, which forms part of the Halleck Creek District.”
As the project moves forward, ARR will focus on:
- Continuing core logging and updating drill hole databases
- Collecting additional televiewer logs of final core holes and gamma logs of open RC holes
- Finalising drill hole locations with professional surveyors
- Incorporating new data into geological models
- Updating resource estimates based on assay results
- Preparing for the Pre-feasibility Study
The successful completion of this drilling campaign marks a significant milestone for American Rare Earths, potentially positioning the Halleck Creek Project as a key player in the rare earth elements market.








