what district is college of the siskiyous in
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. It is part of the California Community Colleges System, serving as the northernmost college in the state of California and the only college in Siskiyou County.