Horizon High School - Class of 1983 Alumni, Thornton CO

Join thousands of alumni from Horizon High School and the Class of 1983. Reconnect with classmates, photos, yearbooks, upcoming reunions.

Varsity Football Schedule 2026-27

08/27 vs Legacy
09/03 vs Mountain Range
09/09 vs Northglenn

'83 Reunion Info

Class of 2000 - 15 Year Reunion

We had a great time at our 10 year, so we thought why not have another get together and celebrate 15 years post graduati...

View Details →

Horizon '83 Apparel

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

Class Yearbook

View past yearbooks

Connect with Class of 1983 Classmates

Mark Grell

Nearby Horizon Classmates

Class of 1982

2 classmates have joined

View Class of 1982 Alumni

Class of 1984

3 classmates have joined

View Class of 1984 Alumni

Class of 1985

3 classmates have joined

View Class of 1985 Alumni