Buried deep in the Mojave Desert is one of the biggest and richest deposits of borax on the planet. You will also find the Borax Visitor Center, one of the best kept secrets of the Southern California desert. Built in 1997, it had more than 126,845 visitors as of the end of 2010. It currently operates California's largest open pit mine in Boron, California and is classified as one of two world-class borate deposits on planet This mine alone supplies nearly half the world's demand for industrial borates, serving customers in nearly 100 countries. Come experience this marvel yourself!