MOUNTAIN PASS, U.S. -- In the high desert of Southern California, a vast open pit has become a battleground in the global struggle for industrial supremacy.
How one mine in California is trying to challenge Beijing's dominance

The Mountain Pass Rare Earth Mine in California is the U.S.'s only active rare-earth producer. (Photo courtesy of MP Materials)
MOUNTAIN PASS, U.S. -- In the high desert of Southern California, a vast open pit has become a battleground in the global struggle for industrial supremacy.