Creator
- Environmental Systems Research Institute (Redlands, Calif.)6
- Geological Survey (U.S.)5
- United States. Bureau of the Census. Geography Division4
- National Energy Information Center (U.S.)3
- Togo. Direction General of Cartography3
- California. Metropolitan Transportation Commission2
- Nature Conservancy (U.S.)2
- New Zealand. National Topographic/Hydrographic Authority2
- United States. National Oceanic and Atmospheric Administration2
- United States Geological Survey1