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Chaffey Joint Union High School District

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    LOHS Boundaries

    Los Osos High School Boundaries

    From San Bernardino National Forest boundary line in alignment with Etiwanda Avenue

    South in a straight line to Etiwanda Avenue and continue south to route 30/210

    West to Milliken Avenue

    South to Baseline Road

    West to Hermosa Avenue

    North to former Southern Pacific Railroad

    West to Ramona Avenue, north to Highland Avenue

    West to Archibald Avenue

    North to Banyan Street

    West to Carnelian Street

    North to San Bernardino National Forest boundary line 

    Boundary Search

    Boundary Search by Address

    CJUHSD Boundary Map

    Los Osos High School

    6001 Milliken Avenue
    Rancho Cucamonga, CA 91737
    (909) 477-6900 Phone

    Office Hours

    Mon - Fri: 7:30am - 4pm

    Non-Discrimination | Title IX | Anti-Harassment

    © 2018 Chaffey Joint Union High School District

    Chaffey Joint Union High School District

    211 West Fifth Street, Ontario, CA 91762
    (909) 988-8511 Phone

    Make changes to the header and footer on the "Edit Header and Footer" tab on the left.