Creator
- World Wildlife Fund (WWF)28
- World Wildlife Fund14
- Geological Survey (U.S.)3
- Wyoming Geographic Information Sciences Center3
- Monterey County (Calif.)2
- National Atlas of the United States2
- Santa Clara Valley Water District (Calif.)2
- California. Metropolitan Transportation Commission1
- Jasper Ridge Biological Preserve (Agency)1
- Tehama County Public Works1