| Monolith | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | California#USA |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in California |
| Pushpin Image: | California Locator Map with US.PNG |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Name1: | California |
| Subdivision Type2: | County |
| Subdivision Name2: | Kern County |
| Coordinates: | 35.12°N -118.3742°W |
| Elevation M: | 1209 |
| Elevation Ft: | 3966 |
Monolith (formerly, Aqueduct) is an unincorporated community in the Tehachapi Valley, in Kern County, California.
The community is located 4.5miles east of Tehachapi, at an elevation of in the southern Sierra Nevada and eastern Tehachapi Pass areas.
The Aqueduct post office opened in 1908, and changed its name to Monolith in 1910.
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. William Mulholland bestowed the name change, due to a huge limestone deposit. 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.[1]