Major Uranium, Rare-Earth Deposit ‘Rediscovered’ in California

A uranium sample from a critical mineral deposit glows under blacklight as a a gieger counter measures its radiation in San Bernardino County, Calif., in a file photo. Courtesy of Sundown Resources

A massive mineral deposit in San Bernardino County, California, might yield $2.5 billion in uranium alone, enough to supply the nation’s needs for the next 16 years, according to the miners who own the claim.

Aside from uranium, the deposit is rich in 14 other critical minerals—including many rare-earth elements (REEs)—said Ron Kliewer, one of five miners who own Sundown Resources, a privately held California-based company.