Welcome to Boron
About midway between Mojave and Barstow, this tiny town catapulted on to the map in 1927 with the discovery of one of the world’s richest borax deposits. Today, it is home to California’s largest open-pit mine, currently operated by global mining concern Rio Tinto. At 1.75 miles wide, 2 miles long and up to 7650ft deep, the mine looks like a humanmade Grand Canyon and satisfies 40% of the world’s demand for this versatile mineral (used in everything from glass to detergents).
Historically, Boron was on the route of the famous 20-mule teams that hauled borax mined 165 miles away in Death Valley to the railway in nearby Mojave between 1883 and 1889.