Trona is an unincorporated community in San Bernardino County, California. In 2015 it had a population of approximately 1,900. Trona is at the western edge of Searles Lake, a dry lake bed in Searles Valley, southwest of Death Valley. The town takes its name from the mineral trona, abundant in the lakebed.
Oak Glen is a census-designated place situated between the San Bernardino Mountains and the Little San Bernardino Mountains in San Bernardino County, California, United States. Oak Glen is located 15 miles east of San Bernardino, at an elevation of 4,734 feet (1,443 m).