Creator
- United States. Bureau of the Census. Geography Division22
- Endris, Charles A.21
- Manson, Michael W.18
- Hartwell, Stephen R.17
- Geological Survey (U.S.)16
- Garcia, Paul14
- Price, Matt14
- World Wildlife Fund14
- Dieter, Bryan E.12
- Conrad, Jamie E.10
- Finlayson, David P.10
- Watt, Janet T.9
- von Dohlen, Jerry8
- Monterey County (Calif.)7
- Santa Clara Valley Water District (Calif.)6
- National Atlas of the United States5
- Smith, Walter H. F.5
- Wessel, Paul5
- Clahan, Kevin B.4
- Kelso, Nathaniel Vaughn4