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Monday-Thursday, 8:00 am to 5:00 pm. Closed Fridays through August 4. Contact area / department for appointment. Interested in a Campus Tour this Summer? Contact Outreach to schedule, (530 938-5847.
Enroll Now... Registration for 2023 Fall Semester Classes is Open
Summer Camps at Siskiyous
Catch up... Keep up... Get ahead! Our Campus is Open to Assist You. Open Monday – Thursday from 8:00 am to 5:00 pm.
Career Center. Learning Resources Center (LRC 3). Summer Hours June 5 - August 18. Tuesday & Wednesday 10:00 am - 3:00 pm.
Health Clinic Services. Telemedicine or in-person services are available for students.
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Important Dates


May 30

Summer Session Begins

June 2

Summer Hours - Campus Closed

June 19

Juneteenth - Campus Closed

July 4

Indepen-dence Day - Campus Closed

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COS Campuses Closed for Memorial Day Holiday

Registration for Summer and Fall Classes at COS is Open

College of the Siskiyous Confers Emeritus Faculty Status to Phil Maas

Registration for Summer Show Choir and Jazz Clinic is Open!


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Student Testimonial

Noah Silverthorne
Student Athlete / Eagle Ambassador

Noah Silverthorne

My name is Noah Silverthorne. I am from Vancouver, Washington. I came to COS to play football and get my degree in kinesiology. I have done that and more during my time here at COS. I really enjoy the people that we have here at this college especially in Basecamp and the ASC. I have had wonderful connections with many staff members and students during my time here and I will always appreciate this college for all it has done for me.