Welcome to Sierra High School
461 Sierra Park Road
Mammoth Lakes, CA 93546
(760) 934-3702
Sierra High School Mission Statement
Sierra High School is a safe and nurturing environment where students have built positive relationships with their peers and have positive adult role models on campus that will assist them with becoming productive adult citizens.

The staff at Sierra High School believes that all students have the potential to learn the core of knowledge that ultimately leads to a productive, independent life style.

• We are committed to providing all students within a safe, clean, secure environment with equal access to the core curriculum which is an integration of academic and vocational disciplines.

• We are committed to developing effective programs to enhance every student’s talents and abilities.

• We are committed to providing programs to all students that promote their social and emotional growth.

• We are committed to providing avenues for parent and community involvement.

News & Announcements

RED DAY, No School, Tuesday, March 21, 2023

Good morning MUSD Families,
Due to the timing of this storm during the school day, today has become a RED DAY today for all MUSD schools. Therefore, there is NO school today, Tuesday, March 21, 2023. Please stay safe and stay home. Road conditions are predicted to be hazardous with the snowfall. MUSD buildings, including the district office, will be closed today. This is hopefully the last one. Thank you.

Show All News »

Sierra High School Events

Board of Education Meeting
Date: 4/27/2023, 6 PM 8 PM
Location: MHS MPR
Date: 5/13/2023, 8 PM 10 PM
Location: Mammoth Conference Center (MCC) @ Mammoth Mountain
MHS Senior Trip
Date: 5/17/2023
Location: Disneyland
MHS Senior Trip
Date: 5/18/2023
MHS Senior Trip
Date: 5/19/2023