Britannica
Sources used in this answer
Which geographic features border Silicon Valley?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
Silicon Valley
Silicon Valley highlighting key historic tech offices, major tech headquarters, and offices with headquarters elsewhere.
Silicon Valley is an industrial region located in California, United States, defined by its proximity to the southern shores of the San Francisco Bay.1
The region is geographically bounded by the following features:
- North: San Francisco Bay2
- West: Santa Cruz Mountains2
- East: Diablo Range2
The area encompasses the northwestern portion of Santa Clara County, extending as far inland as San Jose, as well as the southern bay regions of Alameda and San Mateo counties.1