Product Overview
The Northwest! The San Diego region was born in volcanic fire and torrential flood from the western slopes of the Sierra Madre, hundreds of miles to the south. Global tectonic forces drive it northwest as part of the Baja peninsula, possibly fated to perish against icy Alaskan shores. Fear not, however. The itinerary for this voyage is many millions of years long. JOURNEY THROUGH GEOLOGIC TIME, With the narratives and road logs of this guidebook as your passport. Use its numerous photos, illustrations and maps to begin understanding the features and processes of earth science which profoundly influence the lives of San Diegans. Start to identify the signs of this journey from late dinosaur ages to the present as recorded in the sands, shell fragments and stony sentinels of San Diego's beaches, mountains and deserts.
