KSIZ (102.3 FM) is a radio station based in Mount Shasta, California (city of license is Weed, California), owned by Mark & Cynthia Kay Baird's Buffalo Broadcasting, LLC, which also owns KSYC-FM in Yreka. KSIZ broadcasts to the Siskiyou County and Redding markets, and has one of the largest geographical reaches of any FM station Northern California. The program director/on-air talent is Joe Kesterson, who also hosts the evening show on KSYC show. Kesterson replaces Rick Martin, former station owner/general manager/on-air talent, who had been on the air in the market for 20 straight years, longer than any other local personality.