Black Hills (Contra Costa County)
 | This article relies largely or entirely on a single source. (August 2021) |
| Black Hills | |
|---|---|
  Black Hills Location of Black Hills in California[1] | |
| Highest point | |
USGS Briones Valley | |
The Black Hills are a mountain range in Contra Costa County, California.[1]
References
- ^ a b "Black Hills". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2009-05-04.
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