Main Contact for Adult School: Josh Carr Phone: 530-842-3988 Fax: 530-841-0740 Email: Physical Address: 701 N. Oregon St., Yreka, CA 96097 Mailing address: 400 Preece Way, Yreka CA 96097 Website: Short description (or list) of services: Yreka Adult School offers a full diploma program as well as GED prep and testing. We have also added an English as Second Language program and numerous workforce preparation trainings.