Alta Loma High School a comprehensive public high school located in Rancho Cucamonga, California, United States, that was established in 1963. As a member of the Chaffey Joint Union High School District, the school employs roughly 150 staff members who serve 2,700 students.HistoryWith funding received from state bonds, expansion work was done between 1998–2001, adding on a new Math and Science building, a new dance studio, weight rooms, and a new library, along with renovation work on sites around the campus.AthleticsAlta Loma is a member of the Mt. Baldy League of the CIF Southern Section. The school's football team plays its home games at Alta Loma's Uhalley Stadium.