In episode 167, Dr. Alan Garfinkel interviews author and conservationist Alan Ehrgott about his recent book, The Elusive Conquest of Queen Califa: California History Revisited. The discussion explores the Indigenous peoples of Baja California, the arrival of Spanish explorers and missionaries, and the role of rock art as a visual record of history, belief, and cultural survival. Ehrgott describes how his work blends historical research, memoir, adventure travel, and historical fiction, drawing from a 1,200-mile backpacking journey along Baja California’s Camino Real and decades of study of California history and conservation. The episode examines Indigenous lifeways, missionization, colonial encounters, cave paintings, and the enduring cultural landscapes of Baja California, while reflecting on how archaeology, oral traditions, and rock art help illuminate the complex history of California and its first peoples.