Two Resources to Unlock Countless Opportunities
The Stibnite Gold Project is located in Idaho’s abandoned Stibnite Mining District, one of the largest known commercial-scale gold and antimony reserves in America. Gold and antimony work together. Gold supports the project economically, while antimony is a federally designated critical mineral used in energy, modern technology, and national defense.
Our Approach
Every part of the Stibnite Gold Project is guided by discipline, clarity, and long-term thinking. We studied the site for nearly a decade before submitting a plan, and continued refining it through the environmental review process. When feedback called for a smaller footprint, improved water quality, and lower water temperatures, we made changes. Not because it was easy, but because it was the right thing to do.
A Strategic Asset
The proven reserve contains 148 million pounds of antimony, enough to cover roughly 35% of U.S. demand in the project’s first six years and could fulfill some long-term defense needs. The federal government has invested more than $80 million to bring this project to life because of antimony’s growing significance to national and economic security.
Local Investment, Shared Impact
The Stibnite Gold Project was designed to create lasting benefits for communities across our region of Idaho, with investments intended to endure long after mining is complete. We see this work as a partnership, accomplished with the people who live, work, and raise families here. From local investments to job creation, our approach is grounded in creating outcomes that matter today and well into the future.
Giving Stibnite a Second Life
Our restoration work began early: cleaning up legacy waste, improving water quality, and rebuilding river channels. The mining operation will directly fund future restoration, linking resource development with environmental repair.