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- California. Department of Water Resources39
- California Geological Survey15
- California. Division of Mines and Geology8
- California. Department of Conservation7
- Marshall, Gerald5
- Mendes, Eric5
- Arizona. State Land Department1
- Bay Area Open Space Council1
- Conservation Lands Network1
- GreenInfo Network (Firm)1
- San Francisco Bay Area Upland Habitat Goals Project1
- United States National Park Service1