Diamond Ranch High School (or DRHS) is a high school

High school

High school is a term used in parts of the English speaking world to describe institutions which provide all or part of secondary education. The term is often incorporated into the name of such institutions....

 (secondary school

Secondary school

Secondary school is a term used to describe an educational institution where the final stage of schooling, known as secondary education and usually compulsory up to a specified age, takes place...

) operated by the Pomona Unified School District

Pomona Unified School District

Pomona Unified School District or PUSD serves approximately 30,000 Pre-K-12 students and 17,000 adult learners at 44 schools in Pomona and Diamond Bar, California. It is located 30 miles east of downtown Los Angeles, and is the third-largest school district in Los Angeles County...

 (PUSD) in Pomona, California

Pomona, California

-2010:The 2010 United States Census reported that Pomona had a population of 149,058, a slight decline from the 2000 census population. The population density was 6,491.2 people per square mile...

. In 2003, Diamond Ranch was named as a California Distinguished School

California Distinguished School

A California Distinguished School is an award given by the California State Board of Education to public schools within the state that best represent exemplary and quality educational programs. Approximately five percent of California schools are awarded this honor each year following a selection...

 by the California Department of Education

California Department of Education

The California Department of Education is a California agency that oversees public education. The department oversees funding and testing, and holds local educational agencies accountable for student achievement...

. In April 2007, it was named a California Distinguished School for the second time. The Panther Athletic teams currently compete in the Hacienda League of the CIF Southern Section

CIF Southern Section

C.I.F. Southern Section is the largest of the ten sections that comprise the California Interscholastic Federation . Its membership includes most public and private high schools in Orange, Los Angeles, Riverside, San Bernardino, Ventura, Santa Barbara, San Luis Obispo, Mono and Inyo counties, as...

.
The school was designed in an expressionist modern

Modernism

Modernism, in its broadest definition, is modern thought, character, or practice. More specifically, the term describes the modernist movement, its set of cultural tendencies and array of associated cultural movements, originally arising from wide-scale and far-reaching changes to Western society...

 by Morphosis, led by architect Thom Mayne

Thom Mayne

Thom Mayne is a Los Angeles-based architect. Educated at University of Southern California and the Harvard University Graduate School of Design in 1978, Mayne helped found the Southern California Institute of Architecture in 1972, where he is a trustee...

.