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Publisher
- Santa Barbara Museum of Natural History,293
- Geological Survey (U.S.)206
- California. Department of Fish and Game. Marine Resources Region165
- California. Department of Water Resources123
- California Division of Mines and Geology,67
- Dibblee Geological Foundation,61
- California. Department of Transportation60
- California. Department of Fish and Game. Marine Resources Region 49
- Sacramento County GIS35
- California. Office of Statewide Health Planning and Development19
- Geological Society of America,18
- Bureau of Land Management,15
- Geoscience Publications15
- National Atlas of the United States15
- California. Air Resources Board13
- Division of Mines and Geology,11
- Bay Area Open Space Council9
- Platts9
- Thomas Wilson Dibblee, Jr. Geological Foundation,9
- U.S. Geological Survey ;8