Halleck Creek Rare Earths Project

planned

The Halleck Creek project is a large-scale rare earth elements mining and processing project located in Platte and Albany Counties, Wyoming. It hosts the largest known deposit of total contained rare earth oxides in the United States. The project involves advancing from technical studies into front-end engineering, detailed design, construction, and commissioning of mineral processing and separation facilities. The project aims to strengthen domestic supply chains for critical rare earth elements essential to advanced manufacturing, defense, and future technologies.