|Coordinates: Coordinates: |
|County||Contra Costa County|
|Elevation||709 ft (216 m)|
Tassajara (until 1959, Tassajero; also formerly called Tasajero and Tassajera) is an unincorporated community in Contra Costa County, California, United States. It is located on the east bank of Tassajara Creek, 6.5 miles (10 km) south-southeast of Mount Diablo, at an elevation of 709 feet (216 m). Together with Blackhawk it forms the Blackhawk-Camino Tassajara census designated place (CDP).
A post office operated at Tassajara from 1896 to 1922.
- "Tassajara (Contra Costa County, California)". Geographic Names Information System. United States Geological Survey. Retrieved May 11, 2014.
- "FIPS55 Data: California". FIPS55 Data. United States Geological Survey. February 23, 2006. Retrieved May 11, 2014.
- Durham, David L. (1998). California's Geographic Names: A Gazetteer of Historic and Modern Names of the State. Clovis, Calif.: Word Dancer Press. p. 711. ISBN 1-884995-14-4.
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