Red Mountain, California


Red Mountain, formerly known as Osdick, is an unincorporated community in San Bernardino County, California, United States.
Red Mountain is south-southwest of Trona, part of the mining district of Randsburg, California and Johannesburg, California.
Red Mountain has a post office with ZIP code 93558. The post office opened under the name Osdick in 1922 and changed its name to Red Mountain in 1929.