Rare Earth Directory

Idaho ยท state page

Rare earth mines, projects and companies in Idaho

Idaho has 2 tracked rare earth mines and projects: Lemhi Pass and Diamond Creek. None is producing rare earths yet: 2 in exploration.

Idaho Strategic Resources, better known as a gold producer, explores the Lemhi Pass and Diamond Creek prospects, and reported yttrium-rich results at Diamond Creek in Jul 2026.

The USGS also describes Hall Mountain, Mineral Hill and Idaho monazite placers in Idaho as historic or prospect rare earth deposits that are not tracked as projects here; see historic and prospect deposits.

Verified through Oct 1, 2026

See the sites Open on the map
Lemhi Pass: Exploration Lemhi Pass Diamond Creek: Exploration Diamond Creek
Pins mark an area or a city, not a surveyed point. Circles are mines and projects, squares are plants and mills.
Sites on the map
2Mines, projects, mills and plants
Mines and projects
2
Plants and mills
0
Companies and pilots
1Tracked in the state

Which rare earth mines and plants are in Idaho?

2 sites are tracked in Idaho, and both are 2 in exploration. The table gives the owner and the next step for each.

Tracked rare earth mines, projects, mills and plants in Idaho, by status
SiteLayerStatusOwner or operatorNext step or status note
Diamond CreekLemhi County, IDMines and projectsExplorationIdaho Strategic ResourcesBulk sampling and mineralogical studies in H2 2026; no resource estimate
Lemhi PassLemhi County, ID and Beaverhead County, MT (about 25 miles southeast of Salmon, ID)Mines and projectsExplorationIdaho Strategic ResourcesPermitting and drill targeting for 2026 and beyond; no resource estimate

Mines and projects link to their own profile. Plants link to the profile of the company that operates them. See the map page for how precise each pin is.

Verified Oct 1, 2026

What permits do rare earth projects in Idaho need?

Each project has its own approvals. The summaries for Lemhi Pass and Diamond Creek come from the permits section of each profile, where the sources are listed.

Which rare earth companies are based or building in Idaho?

Idaho Strategic Resources (headquartered in Coeur d'Alene, with Lemhi Pass and Diamond Creek) is tracked in Idaho.

Rare earth companies, pilots and institutions tracked in Idaho
CompanyWhy it is in IdahoRoleListingGovernment support
Idaho Strategic ResourcesHeadquarters (Coeur d'Alene, Idaho); Lemhi Pass; Diamond CreekExplorerNYSE American: IDRNone recorded

A company with several sites appears on each state page where it has one. Companies without a link have no profile yet. Government support is the company-wide summary and is not allocated to a state.

Which neighboring states have rare earth projects?

Wyoming, Montana and Utah border Idaho and have tracked rare earth sites, companies or pilots.

All states: rare earth mines, projects and companies by US state.

Questions about rare earth in Idaho

Does Idaho have rare earth mines?

Idaho has 2 tracked rare earth mines and projects: Lemhi Pass (in exploration) and Diamond Creek (in exploration). None produces rare earths today, and the only active primary rare earth mine in the United States is Mountain Pass in California.

Which rare earth companies are based or building in Idaho?

Idaho Strategic Resources (headquartered in Coeur d'Alene, with Lemhi Pass and Diamond Creek) is tracked in Idaho.

Sources and verification

Each profile lists its sources, a confidence grade and a verification date. Order of authority: official records (SEC filings, agency documents), company documents and technical reports, research papers, then independent press. Syndicated copies and reference works are labeled and are never the only source for a number. Company-reported figures are labeled as such, and non-binding deals are labeled "letter of intent" or "conditional".

Tags show what kind of source each link is. How sources are ranked