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Welcome
Located at the base of Mt. Shasta, College of the Siskiyous is one of the most beautiful community colleges in California. Whether you seek a comfortable transition between high school and university life, or wish to further your college education, you will find a program to suit your needs.
Events & Announcements
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COS Campuses Closed for Memorial Day Holiday: COS Weed and Yreka Campuses will be closed on Monday, May 27. Both campuses will reopen May 28.
Summer Session Begins June 3: There are many classes to choose from, however popular classes and transfer classes fill fast. Register now to get the classes you want and need!
Golf Tournament Will Benefit COS Athletics: The annual 
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