Horizon High School - Class of 2003 Alumni, Thornton CO
Join thousands of alumni from Horizon High School and the Class of 2003. Reconnect with classmates, photos, yearbooks, upcoming reunions.
Varsity Football Schedule 2026-27
09/03 vs Mountain Range
09/09 vs Northglenn
'03 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...
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Recently joined '03 Classmates
Justin Beery
Class of 2003
Rachael Collins
Class of 2003
Tonya Reffel
Class of 2003
Angela La
Class of 2003
Tiffany Perito
Class of 2003
Karen Lase
Class of 2003
Wanda Woods
Class of 2003
Linella Coberley
Class of 2003
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Nearby Horizon Classmates
Class of 2001
89 classmates have joined
Class of 2002
101 classmates have joined
Class of 2004
69 classmates have joined
Class of 2005
54 classmates have joined