Where is college of the siskiyous located? College of the Siskiyous. College of the Siskiyous (COS) is a public two-year community college with campuses located in Weed and Yreka in Siskiyou County in Northern California.Does college of the siskiyous have a nursing program? History. The nursing programs, including the LVN to RN step up program, are a hallmark of the College of the Siskiyous. Music, Theater, and Visual Arts classes are also popular with the students at College of the Siskiyous.Where is siskiyou county california? Siskiyou County is located in far northern California, approximately 30 miles south of the Oregon border, with a population of about 45,000 residents. The current president of COS is Char Perlas, PhD, who is the 13th president. College of the Siskiyous athletic mascot is the Eagle.What is the mascot for college of the siskiyous? College of the Siskiyous athletic mascot is the Eagle. COS offers student intercollegiate athletic competition in a number of sports. Women's collegiate sports include: basketball, softball, cross country, track, soccer, and volleyball. Men's collegiate sports include: baseball, basketball, cross country, soccer, track, and football.