Buried within the rocks of Mountain Pass are rare-earth elements—a group of metals that play a vital role in nearly every twenty-first-century technology. They help make the high-strength magnets that ...

There’s a long history of hard rock mining in Southern Colorado. Now the federal government is updating the region’s geological maps to expand the search for critical minerals and rare earth elements.

You may be hearing a lot lately about critical minerals and rare earth elements. These natural materials are essential to industry and modern technology – everything from cellphones to fighter jets.

In Eagle County, many of us spend our time looking up toward mountain peaks, sunsets, or circling hawks, but some of the most fascinating parts of Colorado’s story lie beneath our feet. Rocks are ...