Tri-valley High School - Class of 1970 Alumni, Colton SD

Join thousands of alumni from Tri-valley High School and the Class of 1970. Reconnect with classmates, photos, yearbooks, upcoming reunions.

Varsity Football Schedule 2026-27

08/27 vs Milbank
09/03 vs Madison
09/10 vs Lennox
09/24 vs Custer
10/08 vs Dell Rapids
10/15 vs Beresford
10/21 vs Sioux Falls Christian

'70 Reunion Info

Wild West

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Tri-valley '70 Apparel

Browse our apparel store for a wide range of Mustangs gear, from t-shirts and hoodies, to caps and accessories.

Class Yearbook

View past yearbooks

Recently joined '70 Classmates

Dianne Benson
Class of 1970

Connect with Class of 1970 Classmates

Jim Johnson

Kristi Brendtro

Anita Van Roekel

Thomas Sletten

Nearby Tri-valley Classmates

Class of 1968

21 classmates have joined

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Class of 1969

7 classmates have joined

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Class of 1971

3 classmates have joined

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Class of 1972

4 classmates have joined

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