Tassajara, a variation of the Spanish word "tasajera" (

Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many countries in the Americas **Spanish cuisine **Spanish history **Spanish culture ...

for "place where the meat is hung" or " meat drier"), is an

unincorporated community An unincorporated area is a parcel of land that is not governed by a local general-purpose municipal corporation. (At p. 178.) They may be governed or serviced by an encompassing unit (such as a county) or another branch of the state (such as th ...

Contra Costa County Contra Costa County (; ''Contra Costa'', Spanish language, Spanish for 'Opposite Coast') is a U.S. county, county located in the U.S. state of California, in the East Bay of the San Francisco Bay Area. As of the 2020 United States census, the ...

, California, United States. It is located on the east bank of

Tassajara Creek Tassajara Creek is a stream that flows from southeast of Mount Diablo in Contra Costa County to Arroyo Mocho in Pleasanton in Alameda County, California. The small Tassajara Creek Regional Park is along the creek, in Dublin, California, adjace ...

, south-southeast of

Mount Diablo Mount Diablo is a mountain of the Diablo Range, in Contra Costa County, California, Contra Costa County of the eastern San Francisco Bay Area in Northern California. It is south of Clayton, California, Clayton and northeast of Danville, Califo ...

, at an elevation of 709 feet (216 m). Together with

Blackhawk Black Hawk and Blackhawk may refer to: Animals * Common black hawk, ''Buteogallus anthracinus'' * Cuban black hawk, ''Buteogallus gundlachii'' * Great black hawk, ''Buteogallus urubitinga'' * Mangrove black hawk, ''Buteogallus (anthracinus) s ...

it forms the

Blackhawk-Camino Tassajara Blackhawk is an unincorporated planned community and census-designated place located in Contra Costa County, California, United States, east of Danville and Oakland. As of the 2020 census it had a population of 9,637. Governed by county rules/ ...

census designated place A census-designated place (CDP) is a Place (United States Census Bureau), concentration of population defined by the United States Census Bureau for statistical purposes only. CDPs have been used in each decennial census since 1980 as the counte ...

(CDP).

History

Until 1959, it was known as ''Tassajero'';. A post office operated at Tassajara from 1896 to 1922.

Census county division

Tassajara is also the name of the wider unincorporated

census county division A Census County Division (CCD) is a country subdivision, subdivision of a county (United States), county used by the United States Census Bureau for the purpose of presenting data, statistical data. A CCD is a relatively permanent statistical area ...

(CCD) located on the eastern side of

in central

Contra Costa County, California Contra Costa County (; ''Contra Costa'', Spanish for 'Opposite Coast') is a county located in the U.S. state of California, in the East Bay of the San Francisco Bay Area. As of the 2020 United States census, the population was 1,165,927. Th ...

. The area covers approximately , much of it open space,Open Space / Contra Costa County and East Bay Regional Park District Liaison Committee
/ref> and contains the southern portion of

Mount Diablo State Park Mount is often used as part of the name of specific mountains, e.g. Mount Everest. Mount or Mounts may also refer to: Places * Mount, Cornwall, a village in Warleggan parish, England * Mount, Perranzabuloe, a hamlet in Perranzabuloe parish, C ...

, the Black Diamond Mines,

Morgan Territory Morgan Territory is an historic ranching area on the east side of Mount Diablo in San Francisco East Bay's Contra Costa County. It was named after Anglo-American pioneer Jeremiah Morgan, a migrant from Alabama and Iowa who acquired 2,000 acres a ...

, Round Valley and Vasco Caves regional preserves, as well as the

Los Vaqueros ''Los Vaqueros'' (''English'': The Cowboys) is a collaboration album by Wisin & Yandel featuring the artists from their record label WY Records. It was nominated for a Lo Nuestro Award for Urban Album of the Year. Content It features the follow ...

reservoir.

References

{{authority control Unincorporated communities in California Unincorporated communities in Contra Costa County, California