Red Mountain, California

Red Mountain, formerly known as Osdick, is an unincorporated community in San Bernardino County, California, United States.

Red Mountain, California
Unincorporated community
An abandoned school in Red Mountain
Red Mountain, California Show map of California Red Mountain, California Show map of the United States
Coordinates: 35°21′30″N 117°37′00″W
Country	United States
State	California
County	San Bernardino
Elevation [1]	3,401 ft (1,037 m)
Population  (2010[1])
• Total	131[1]
Time zone	UTC-8 (Pacific (PST))
• Summer (DST)	UTC-7 (PDT)
ZIP code	93558
Area codes	442/760
GNIS feature ID	1661291[2]

Red Mountain was established in 1919 as Osdick, a silver mine boom town^[3] Red Mountain is 32 miles (51 km) 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.^[4] The post office opened under the name Osdick in 1922 and changed its name to Red Mountain in 1929.^[5]

In 2022, the community received a $1.5 million grant to clean sediment of arsenic from historic gold and silver mining from the kelly mine complex.^[6]