Mount Si High School Alumni

Class of '90 Homepage

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Mount Si High School - Class of 1990 Alumni, Snoqualmie WA

Join thousands of alumni from Mount Si High School and the Class of 1990. Reconnect with classmates, photos, yearbooks, upcoming reunions.

Varsity Football Schedule 2026-27

09/03 vs Arlington
09/10 vs Rogers
09/17 vs Tumwater
09/24 vs Hazen
09/30 vs Issaquah
10/08 vs Eastlake
10/15 vs Skyline
10/22 vs Bellevue

'90 Reunion Info

Class of 1966

Need a head count for the food to be served.

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Class of 1990 20th Reunion

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Mount Si '90 Apparel

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

Class Yearbook

View past yearbooks
Yearbook Page
Yearbook Page
Yearbook Page
Yearbook Page

Recently joined '90 Classmates

Lisa Albert

Lisa Albert
Class of 1990

Kristina Grant

Kristina Grant
Class of 1990

Tami Mills

Tami Mills
Class of 1990

Brady Piland

Brady Piland
Class of 1990

Dean Mccain

Dean Mccain
Class of 1990

Jodi Gustaves

Jodi Gustaves
Class of 1990

Nearby Mount Si Classmates

Class of 1988

44 classmates have joined

View Class of 1988 Alumni

Class of 1989

43 classmates have joined

View Class of 1989 Alumni

Class of 1991

30 classmates have joined

View Class of 1991 Alumni

Class of 1992

36 classmates have joined

View Class of 1992 Alumni