Iron Horse Regional Trail, San Ramon, CA

California High School (commonly referred to as Cal High) is one of two public high schools located in San Ramon, California, United States (Dougherty Valley High School is the other). It is one of four high schools in the San Ramon Valley Unified School District. Its mascot is the grizzly bear.As of the 2014–15 school year, the school had an enrollment of 2,639 students and 107.5 classroom teachers (on an FTE basis), for a student–teacher ratio of 24.5:1.

The San Ramon Valley is a valley and region in Contra Costa County and Alameda County, in the East Bay region of the San Francisco Bay Area in northern California.