Monolith, California

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Monolith cement plant.JPG
Monolith is located in California
Location in California
Monolith is located in the United States
Monolith (the United States)
Coordinates: 35°07′12″N 118°22′27″W / 35.12000°N 118.37417°W / 35.12000; -118.37417Coordinates: 35°07′12″N 118°22′27″W / 35.12000°N 118.37417°W / 35.12000; -118.37417
CountryUnited States
CountyKern County
Elevation3,966 ft (1,209 m)

Monolith (formerly, Aqueduct)[2] is an unincorporated community in the Tehachapi Valley, in Kern County, California.[1]

The community is located 4.5 miles (7.2 km) east of Tehachapi,[2] at an elevation of 3,966 feet (1,209 m) in the southern Sierra Nevada and eastern Tehachapi Pass areas.[1]


The Aqueduct post office opened in 1908, and changed its name to Monolith in 1910.[2]

Aqueduct−Monolith began as a camp for workers at a cement plant for the Owens Valley aqueduct project, supplying materials for the construction of concrete structures.[2] William Mulholland bestowed the name change, due to a huge limestone deposit.[2] At Monolith Substation in 2014, Southern California Edison commissioned the Tehachapi Energy Storage Project, which was the largest lithium-ion battery system operating in North America at the time of commissioning and one of the largest in the world.[3]


  1. ^ a b c U.S. Geological Survey Geographic Names Information System: Monolith, California
  2. ^ a b c d e Durham, David L. (1998). California's Geographic Names: A Gazetteer of Historic and Modern Names of the State. Clovis, Calif.: Word Dancer Press. p. 1074. ISBN 1-884995-14-4.
  3. ^ International, Edison. "SCE Unveils Largest Battery Energy Storage Project in North America". Edison International. Retrieved 2020-07-11.