Welcome to the California Geological Survey
THE CALIFORNIA GEOLOGICAL SURVEY is one of the oldest geological surveys in the United States, having been
established in 1860. We map and analyze data on the state's diverse geologic environment, earthquakes, and other geologic hazards and mineral resources to provide critical information to protect life, property, commerce, and the environment from natural hazards. The California Geological Survey is regarded as the primary source of geologic information used for decision-making by California's government agencies, its businesses, and the public.
–“ALTIORA PETIMUS” (We Reach Higher)