According to our records, this business is located at 700 S Main St. in Yreka (in Siskiyou County), California 96097, the location GPS coordinates are: 41.7264398 (latitude), -122.6374127 (longitude). Great Northern Insurance is categorized under Gems-Mines (SIC code 1499). Current estimates show that the unit has a sales volume of $2,233,000 and staff of approximately 11 people. You can contact the company by phone at (530) 842-6722.