Creator
- California. Department of Water Resources122
- California Geological Survey35
- Bay Area Open Space Council30
- Conservation Lands Network30
- GreenInfo Network (Firm)30
- San Francisco Bay Area Upland Habitat Goals Project30
- World Wildlife Fund (WWF)28
- California. Division of Mines and Geology22
- Kelso, Nathaniel Vaughn22
- Patterson, Tom22
- United States. Bureau of the Census. Geography Division22
- California. Department of Conservation21
- GLIMS19
- Garcia, Paul17
- Price, Matt17
- Marshall, Gerald16
- Mendes, Eric16
- Sierra Nevada Conservancy15
- World Wildlife Fund14
- Smith, Walter H. F.13