This page presents "Geology of California," an open educational resource textbook with a student-centered approach. It includes diverse engagement methods like text, images, videos, and activities acr...This page presents "Geology of California," an open educational resource textbook with a student-centered approach. It includes diverse engagement methods like text, images, videos, and activities across 19 chapters, covering key concepts, physiographic provinces, and environmental issues. Instructors can adapt it to their needs. Developed through educator collaboration, the book aims to enhance students' understanding and appreciation of geology.