Tri-valley High School Alumni

Colton, South Dakota (SD)

Military Alumni

Military High School Alumni

Honoring Our Heroes

This area is dedicated to our alumni that have served or are serving in our armed forces!

Lost Class Rings

Have you lost your Tri-valley High School class ring? Have you found someone's class ring? Visit our Mustangs lost class ring page to search for your class ring or post information about a found ring.

Contact us

Enter your name, email address, and a question/comment in the appropriate fields below. Your support request will be promptly addressed.

Classmates Spotlight

Tri-valley High School Classmates

Shannon Davis
Class of '88

Alumni Stories

High School Alumni Stores

Read and submit stories about our classmates from Tri-valley High School, post achievements and news about our alumni, and post photos of our fellow Mustangs.

School News

Do you have any news to share? Keep our classmates informed on news and current events! Please post all reunion information in the reunion area.