skip navigation
Mount Si High School Athletics Booster Club
2022 KingCo 4A Champions!!

2022 KingCo 4A Champions!!

MountSiBaseball Mount Si Baseball MountSiBaseball

Contact

Mount Si High School  
8651 Meadowbrook Way SE  
Snoqualmie, WA 98065  
Phone: (425) 831-8100  
Fax: (425) 831-8222