The Diablo Range is a large group of mountain chains and ranges in western California. It is sandwiched by the Pacific Ocean to the west and by the Central Valley to the east. The range was named after Mount Diablo, which is usually considered to be its northernmost mountain. State nickname: The Golden State Official languages English Capital Sacramento Largest city Los Angeles Governor Arnold Schwarzenegger (R) Senators Dianne Feinstein (D) Barbara Boxer (D) Area  - Total  - % water Ranked 3rd 410,000 km² 4. ... The California Central Valley The California Central Valley dominates the central portion of the state of California. ... Mount Diablo State Park is a state park in California, USA. View of Mt. ...

The Diablo Range generally has a chaparral environment. Its highest point is San Benito Mountain in the remote eastern section of the range. Chaparral is a shrubland biome found primarily in California, USA, that is shaped by a Mediterranean climate (mild, wet winters and hot dry summers) and wildfire. ...