Tri-valley High School - Class of 1991 Alumni, Colton SD

Join thousands of alumni from Tri-valley High School and the Class of 1991. 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

Upcoming Class of 1991 Reunions

Browse past reunion events and photos for your class here.

Past Class of 1991 Reunions

Browse past reunion events and photos for your class here.

Tri-valley '91 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 '91 Classmates

Nicole Pitts
Class of 1991

John Schaefer
Class of 1991

Connect with Class of 1991 Classmates

Jenni Pitts

Bill Kanelis

Paul Siemonsma

Kyle Robinson

Cory Price

Nearby Tri-valley Classmates

Class of 1989

4 classmates have joined

View Class of 1989 Alumni

Class of 1990

12 classmates have joined

View Class of 1990 Alumni

Class of 1992

11 classmates have joined

View Class of 1992 Alumni

Class of 1993

8 classmates have joined

View Class of 1993 Alumni