The Tamalpais Union High School District is located in Marin County, California. It serves several communities, including Mill Valley, Tiburon, and Larkspur. The district operates multiple high schools, providing education to students in grades 9 through 12. The district is known for its commitment to academic excellence and offers a variety of programs, including Advanced Placement (AP) courses and extracurricular activities. It aims to prepare students for college and career readiness while fostering a supportive learning environment.